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Prescription Lenses for OTS & Oceanreef Full Face Diving Masks

Oceanreef Predator, a full face diving mask from See the Sea RX available with corrective lenses

Why full face diving masks

If you need to use communication systems, dive in possibly contaminated water, or just want the ability to breathe through your nose, full face diving masks (or as Oceanreef calls them – IDMs or integrated diving masks) offer several unique features over traditional dive masks. While they may appear intimidating to use at first, full face dive masks are fairly simple to use, WITH the proper training (interesting aside, PADI now offers a full face mask specialty, but before they did, myself and other instructors who wanted to issue full face specialty certifications had to prepare our own course materials and receive a unique specialty instructor certification from PADI). 

If you want to dive with a full face face mask and need corrective lenses, See the Sea RX, the leader in prescription dive masks,  can help ensure you see clear. Full face dive masks should not be confused with full face snorkeling masks, which can only be used at the surface. 


Oceanreef Predator, a full face diving mask from See the Sea RX available with corrective lenses
Ocean Reef Predator Extender Dive Mask available with prescription lenses from See the Sea RX.

full face mask rx lenses

OTS Lens Retainer with Color Correcting Single VIsion lenses from See the Sea RX

If you need prescription lenses for any of the following masks, we have you covered:

Oceanreef GDivers
Oceanreef Iron
Oceanreef Space Extender
Oceanreef Preadator Extender
OTS Guardian FFM 
OTS Spectrum FFM*

Full Face Dive Masks can be made with all the lenses we make in traditional dive masks including bifocals, single vision, lenses, high index single vision, and readers (plus a few options specific to full face masks like progressive lenses and color correcting lenses).

more about the lenses

OTS Guardian Full Face Mask Optical Lens Support

Both OTS and Oceanreef use proprietary lens retainers that clip inside their masks. The lens retainers are not interchangeable between the two main manufacturers of full face diving masks, but the lens retainers are generally moveable between masks of the same manufacturer. The OTS lens retainer (optical lens kit) is $99 plus lenses while the Oceanreef Optical Lens Support 2 is $38 plus lenses. Unlike our traditional dive mask lenses which we produce in glass, (yes actual glass), full face mask lenses are generally produced in polycarbonate or other similar materials (which allows for cool options like the color correcting tint on the OTS lenses seen in the picture above).


OceanReef Lens Support 2.0 for Oceenreef IDM full face dive masks


While the lenses are composed of a different material than our traditional dive masks lenses, they are still available in the same corrective options such as:

-Bifocals. Bifocals are used for divers which need help seeing both near and far vision (seeing the dive site & need help seeing their gauges).
-Single Vision & High Index Single Vision. These lenses are generally produced for divers that need help with their farsight which includes correction for astigmatism (unlike stock lenses, our lenses are made custom and DO correct for astigmatism) and prism (for those that have strabismus or see double).

Prescription lenses for full face diving masks can also be updated if your prescription changes.

how to order full face diving mask prescription lenses

At this time, we do not have online ordering set up for full face diving mask lenses (we do have online ordering for full face prescription snorkel masks). To start the order process, give us a call at 1800-356-7190, or email us ( As an authorized Oceanreef dealer, we can also build you a lens and IDM mask package. 

Other considerations

While the OTS Spectrum* is a full face diving mask, it is built a little differently than the other FFMs from Oceanreef and OTS, it has a glass flat lens front. We can install lenses on this mask (and have done so such as the custom photographer reading lenses installed on the mask to the right), but the lenses are glass and do not use the lens retainers. The OTS Spectrum is more similar to a traditional dive mask in this regards than an FFM. 

Color correction can be added to all full face mask lenses (except the OTS Spectrum) but is not suggested for photography. For other divers the specially designed tint can help increase the color range at depth when most red light has been absorbed. 

Our lab produces full face masks lenses a bit faster than our traditional dive mask lenses as they do not have to be tempered like glass lenses. Our typical turn around is about a week, and rush options are available. 

OTS Spectrum full face diving mask with reading lenses installed
An OTS Spectrum Full Face Diving mask with custom oversize reading lenses installed by See the Sea RX.


Josh is an optical technician and owner of See the Sea RX. He is a PADI instructor and has been involved in diving for more than 20 years. He has also worked as a sergeant at the Harris County, Texas, Sheriff's Office, which included time as the instructor for the dive team. Josh also holds a masters degree in data analytics from Texas A&M.

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What’s new (with prescription dive masks) in 2021?

A diver under blue water in Cozumel, Mexico is wearing a scuba pro d mask as well as a Hollis Rebreather.

Whats new at See the Sea?

2020 was supposed to be the year (at least of puns) for vision correction. Like a lot of folks, 2020 was full of challenges for me as well as the diving community at large. I was super excited to receive my new Ikelite housing for my Canon 5D MK IV in February last year with plans of all the diving I would do throughout 2020… well we know how that went. I am still getting some use out of my housing, and we are Ikelite dealers if you ever have any questions about getting a camera/underwater camera set up. I have a few trips planned for this year, and I am super excited to post pics and vids from those trips. 

I unfortunately had a bad bout of COVID in the middle of 2020 which included hospitalization. There remain a lot of questions regarding diving post COVID. I am very lucky to be friends with Dr. Robert Sanders, the medical director, and hyperbaric & diving medical specialist, for NASA’s Neutral Buoyancy Lab. Hopefully we can post an interview with Dr. Sanders about recommendations regarding COVID & diving soon.

On the positive side, See the Sea RX continues to grow, and we have continued to help divers around the world see clearly with underwater lenses. I authored an article about prescription dive masks for Diver’s Alert Network which was published in Alert Magazine in May, 2020. You can read the article by clicking on the Alert Diver Cover to the right.

We have also made a few changes to the site, and added a few mask options that I will review below. 

Scuba pro d mask

A diver under blue water in Cozumel, Mexico is wearing a scuba pro d mask as well as a Hollis Rebreather.

We recently added the new Scuba Pro D-Mask as an option for our various prescription lenses last month.

If you want more information on the D Mask, check out my full article on them here.

The D-Mask is available in three different fits, and comes standard with UV coated & tinted lenses. We can install any of our custom prescription lenses including single vision, high index, bifocals, or readers. 

Up close view of a scuba pro d-mask with bifocal lenses

Full face snorkel masks

As an authorized Oceanreef dealer, we sell the highest quality full face snorkeling masks with and without prescription lenses. We added them to our site in late 2019, but since then we have made a few changes. I covered prescription full face snorkeling masks in a blog post here.

You can now order full face snorkeling masks without prescription lenses on our order page:


Custom reading lenses

While most folks will never need a mask like the one on the right (a custom Atomic Venom with dual reading lenses made for rebreather diver and photographer Jill Heinerth), most of us will need some help with seeing our gauges or dive computer as we get older. 

If your gauges are looking a little fuzzy these days, reading lenses can help. If you have any special reading lens needs or want something fully custom like Jill, give us a shout, and we will draw up a draft for your review. 

The benefit of the dual reading lens mask you see here is it allows Jill to see her gauges & rebreather HUD from the bottom of the mask while also using the top of the mask for her camera controls & monitor. 

Other updates & Changes

We have made various other changes to See the Sea RX including adding atomic aquatics diving masks, adding more prescription swim goggle options as well, and working on innovative lenses to help you see better while diving.

As always, if you have any questions about prescription dive mask lenses or any of our products, don’t hesitate to reach out. 



Josh is an optical technician and owner of See the Sea RX. He is a PADI instructor and has been involved in diving for more than 20 years. He has also worked as a sergeant at the Harris County, Texas, Sheriff's Office, which included time as the instructor for the dive team. Josh also holds a masters degree in data analytics from Texas A&M.

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Scuba Pro D-Mask with Prescription Lenses

Scuba Pro D-Mask Origins

When I first starting teaching Scuba at Dive World Scuba while in College, the Scuba Pro D400 mask was still in production. The darth vader like contraption offered a different design than common second stages. 

ScubaPro brought the D series regulators back recently, and with it a new mask, the D-Mask in 2020. Soon, online ordering will be available for the D-Mask on our site (you can still call us and order it over the phone as well as send us your own D-Mask to have lenses installed), but in the meantime, I wanted to provide you with a brief overview of the D-Mask, who would want it as a prescription dive mask, and some photos of a d-mask with prescription lenses we installed. 

A diver under blue water in Cozumel, Mexico is wearing a scuba pro d mask as well as a Hollis Rebreather.
Our friend Aiar diving the Scuba Pro D-Mask and the Horizon rebreather
ScubaPro D-Mask available with prescription lenses from See the Sea RX
The reintroduced scuba pro d-series regulator

Overview of the d mask

When designing the D-Mask, ScubaPro included a few unique features:

  • UV coated lenses. Most dive masks on the market do not include a UV coating to protect your eyes at the surface of the water; however the D-Mask does.  The lenses also have a slight purple hue to help provide accurate colors underwater despite the UV coating.
  • Various size options. The D-Mask comes in three skirt sizes (seen on the right)- Small for petite adults or children, medium for most average adults, and wide for those with wider faces.
  • Trufit skirt- similar to the skirt on the synergy series of masks from Scuba Pro. 


Even if the D-Series regulators do not interest you, the D-Mask style is unique and offers a prescription dive mask option in a moderate volume mask. The Scuba Pro Heads Up display dive computers (Galileo) easily attaches to the D-Mask, and the mask comes with a quality fabric dive mask case. 

Sizing options for Scuba Pro D-Mask. The S mall is really for very petite adults or children. The medium for most average adults. The Wide fits wider faces.

Prescription optical lens options for the d-mask

The D-Mask is available with all custom lenses from See the Sea RX. This includes:

  • Single Vision Lenses: these lenses correct for distance only (and available in high index for strong prescriptions).
  • Reading Lenses: These lenses do not correct for distance, but are normally located at the bottom of the mask to help divers see their gauges, camera, or computer. 
  • Bifocal Lenses: Bifocal lenses come in several options and help scuba divers correct for both near and distant vision problems. I wrote a long article covering the dive mask bifocal lens options, which you can read here. 
Another feature of the D-Mask is it does accept our stock lenses. Stock lenses are premade off the shelf lenses that can only correct for distance vision and do NOT correct for astigmatism (or prism). Stock lens dive masks are more affordable than our custom prescription dive masks for those whose prescriptions fit the parameters. The D-Mask with stock lenses can be ordered here. 

Whether you have optical needs that require custom lenses or a simple prescription which can be corrected with stock lenses, the Scuba Pro D-Mask with lenses from See the Sea RX is a great option for a lot of divers.

(The D-Mask on the left of this paragraph had custom bifocal lenses installed by See the Sea RX).

How to order a d-mask with prescription lenses

You can order the Scuba Pro D Mask with either custom or stock lenses from See the Sea. 

If you meet the following, stock lenses may work for you:

  • Distance only prescription (within -5.00 up to +4.00)
  • No prism or astigmatism correction needed
  • No near vision (bifocals) needed
If you fit within those parameters, the Scuba Pro D-Mask with Stock Lenses can be ordered here. 


If your prescription is out of range of stock lenses, if you require bifocals, or if you need astigmatism or prism correction, the Scuba Pro D-Mask with custom prescription lenses can be ordered here. 

If you already have a D-Mask and want us to install lenses, you can order the lenses at and click on “I have a mask”.

The scubapro D-Mask is located on in the middle of our mask selections on the custom lens ordering page.


Josh is an optical technician and owner of See the Sea RX. He is a PADI instructor and has been involved in diving for more than 20 years. He has also worked as a sergeant at the Harris County, Texas, Sheriff's Office, which included time as the instructor for the dive team. Josh also holds a masters degree in data analytics from Texas A&M.

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Dive Mask and Prescription Considerations for Underwater Photographers

OTS Spectrum full face diving mask with reading lenses installed

Prescription dive mask concerns for photographers and cinematographers

               One of my personal passions, since I started scuba diving at 14 has remained underwater photography. Being able to share images and videos of the sites we are so privileged to be able to see as divers starting with my old 35mm camera and housing I took on my early dives. Some of us divers from a young age need help with our vision and use of underwater camera equipment, while others have vision issues that develop with age. In addition to various vision issues that can affect diver’s ability to use a camera, photographers and cinematographers have unique needs that every mask may not fit. 

For example on the right, is an OTS Spectrum full face diving mask used by a professional photographer. Only reading lenses were used and were made oversize so the photographer could focus on their camera and settings, with a little space left on top for uncorrected distance viewing. 

OTS Spectrum full face diving mask with reading lenses installed
An OTS Spectrum Full Face Diving mask with custom oversize reading lenses installed by See the Sea RX.

In this article, am going to discuss scuba masks and prescription mask concerns as they relate to the underwater photographer including:

  •        Picking a mask for underwater photography
  •        Prescription lens options
  •         Reading lens options

Picking a (prescription or corrective) scuba mask for underwater photography:

While photography needs (and prescription needs) do affect mask decision, it is still important to not forget the basics. While a mask may be one of the less expensive pieces of equipment a diver uses, few things can ruin a dive like a mask that fogs, leaks, or completely fails. A quality dive mask should consist of a silicone skirt, tempered glass lenses, and high quality frame materials (if not frameless). This becomes even more critical when trying to capture the once in a lifetime shot through your viewfinder only to later find your focus was off due to a foggy mask

Picture taken in the Dos Ojos Cenote with a Sony RX100VI by Josh at See the Sea

Modern digital cameras and software allow us to save a lot of images in post processing, but focus cannot be repaired in post (there is always an exception, such as the dual pixel raw Canon 5DmkIV which allows MICRO focus adjustments in Canon software). 

On the left is my 5DMKIV housing which fits the full size DSLR. While the dual pixel raw image does allow some focus shifting in post, it is extremely minor and will not fix an out of focus image but rather is designed to sharpen focus on the eyes for example. 

In addition to general mask concerns, photographers do have a few additional needs. 

To minimize any distortion of lcd viewfinders or monitors, underwater photographers should avoid tinted or mirrored lenses. While tinted and mirrored dive mask lenses are popular with recreational divers to bring back color while diving or cut through glare at the surface, any mirror or tinted lens does reduce the amount of light reaching the eye. As underwater photographers, we want every photon to reach our eyes, so we can see the clearest picture and ensure we are capturing what we would like. 

In my article on choosing a prescription dive mask, one of the larger decisions we have to make when choosing a new dive mask is whether we want a clear skirt or a black skirt mask. Clear skirts let in some peripheral light but tend to yellow over time while black skirts look newer longer. As underwater photographers, the glare from side skirts can be distracting, so in general we recommend black skirt dive masks for photography.

The decision as to whether to use a twin lens or single lens dive mask makes no difference and is a personal choice. 



Twin lens prescription dive mask.
Single lens prescription dive mask .

Prescription considerations for the underwater photographer

In general, there are three main lens styles for prescription dive masks:

  • Single Vision/Distance Correction Lenses
  • Reading Lenses
  • Bifocals

Single vision lenses
correct for one distance only , and wee refer to single vision lenses for distance only correction. For divers that only need correction for distance due to issues such as myopia or astigmatism (yes we can even create prism lenses for scuba diving ).

If a professional underwater photographer has very mild distance correction, they often choose to not correct for the distance so as to keep the near vision as clear as possible.

Single vision lenses start at $208.00.

Reading lenses correct for close vision due to issues such as presbyopia. For the underwater photographer, who spends considerable more time using near/close vision for reviewing camera settings, camera monitors, and viewfinders, reading lenses can be the most popular option. Photographers require larger reading lenses than a diver who just needs to be able to see their gauge or computer. One of our most popular masks for reading lenses is the Atomic Venom Frameless with Reading glass.

Reading lenses start at $158.99.

Bifocal lenses are the most popular lenses produced at See the Sea. Bifocal lenses correct for both near and far distances. I wrote a much longer article (which includes a video about bifocals) on bifocal dive masks which you can review here. While many advanced underwater photographers forgo distance correction in order to focus on their close vision, if your distance vision is poor enough the dive quality would be diminished without it, there are two main and one fully custom bifocal options to consider.

Above is a Scuba Pro Synergy II Twin dive mask (one of our more popular masks), with one of our standard bifocal options. With both our standard bifocal options (the ST28 and the St38), the lens is divided into two sections: A large distance correction area as well as a half moon near vision correction zone. If you look closely at the picture above, you can see the line separating the areas. The final size of the near correction area is a factor of the dive mask, your pupillary distance, and lens constraints. The St35 (starting at $315) is the preferred standard bifocal for photographers as the near vision area is approximately 25% larger than on the St28.

For photographers that cannot operate their equipment with the constraints of the half moon near correction zone, our fully custom bifocal, the Franklin bifocal, pictured below, allows us to use two separate lenses per eye providing a truly custom product with the amount of distance/near correction per eye determined by the scuba diver/ photographer. As this is a fully custom product, online ordering is not available. Please call us for more information. 

As seen with the Atomic Venom Frameless mask above with Franklin lenses, there are two lenses per eye with the near vision lenses at the bottom of the mask extending all the way across, not limited to a half moon shape. Further the percentage of lens for each eye dedicated to near versus far vision can be determined by the diver while consulting us. 

other considerations and ordering

Some prescriptions limit mask choices, such as those with high plus lenses or high prism generally find our M100 and M200 dive masks to work best due to the space between the lenses and the diver’s face. Other dive issues such as freediving photographers, may prefer a low volume mask. I wrote an article on some of our low volume masks for freediving here. 

If you are ready to order a prescription dive mask, you can go to our order page here.  If you have any questions, you can also click the chat box on the bottom right which comes to us during business hours (and often forwards to one of our cellphones after hours). You can also call us at the office at 1800-356-7190. 

As always, you also can send us your own quality dive mask to have lenses installed, and do not have to get a dive mask directly from us. We also have a network of dealer dive stores across the United States ready and willing to help you pick a mask for prescription lenses from See the Sea. 



Josh is an optical technician and owner of See the Sea RX. He is a PADI instructor and has been involved in diving for more than 20 years. He has also worked as a sergeant at the Harris County, Texas, Sheriff's Office, which included time as the instructor for the dive team. Josh also holds a masters degree in data analytics from Texas A&M.

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Diving the Cenotes in December

See the sea rx, diving the cenotes

One of the joys of being in the diving industry is diving! Unfortunately, we have to ensure our customers are taken care of, and as we grew tremendously in 2019, I was unable to dive as much as I would like. In December, 2019 (pre covid days), I was able to duck down to Cancun for a quick vacation (just a few hours flight from our base here in Houston).  The trip was great, and I want to share a few pointers from it:

  • Diving the Cenotes (and open water)
  • New Ikelite Housing/Camera Test
  • Trying out Atomic Masks
I also put together a video on the diving, which you can check out below:
Scuba diver underwater wearing Atomic brand twin window lens mask looking at the camera.
Josh trying out the Atomic Subframe mask in Cancun

Diving the Cenotes- Josh's video

In Cancun, you have two major options for diving: open water and the cenotes. The reefs in Cancun are not as well known as those in Cozumel, but the diving is still pleasant. They also developed an “underwater museum” which allows divers to explore interesting views and sculptures while giving the reefs a break from the divers. 

Divers also can head south from Cancun to various cenotes where fresh water diving systems extend throughout the Yucatan. The above video I took focuses mostly on the cenotes. The Cenotes offer access for various skill levels including swimmers through technical cave diving. The diving I conducted on this trip is available for most certified divers and considered “cavern diving”. While there are times the diver cannot ascend immediately above them due to cover, the diver can at all times see an entry and exit point (light). Divers conducted cavern diving should be accompanied by a certified cave diver.  On this trip, I dove with Cancun Scuba Center and Juan Carlos. I did not receive any discount for diving with them (or posting about them here), but I always enjoy diving with them. 

Testing out cameras

Photography and underwater photography have always been a big passion of mine. In the above video I used my trusty Canon 5DmkIV for the above water shots; however, I tested out a new camera for underwater video and stills. See the Sea RX became Ikelite dealers in 2019, and one of the cameras I have wanted to test is the Sony RX100VI due to its small size and overall great reviews as a travel camera. There are now newer version of the camera available, but it is still compact powerful travel camera. I did use an external ikelite flash. I have included pictures from both the Cenotes and the open water diving I did below for you all to see. As a side note, if you are doing underwater photography (And use bifocals or progressives), you can check out my article on bifocal dive mask lens options for some suggestions.




Testing out masks

I dove two masks on this trip, both Atomic masks, as I have not tried either (and we are the home of ordering Prescription Dive Masks). During the whole trip, I did have stubble/facial hair, and I did not have problems with leaking in either mask. I dove with the both the Atomic Venom and the Atomic Subframe. I have discussed both these masks in my posts on prescription lenses for atomic masks.

While I do personally prefer twin lens masks for aesthetic reasons, I do see why the Atomic Venom (Frameless) has become one of our most popular masks as it was incredibly comfortable with a wide field of view. I have heard some complaints from other divers about fogging in the venom. After a full prep including burnout, I did not have any issues with fogging in the mask. KEEP IN MIND YOU SHOULD NOT DO ANY BURNOUT WITH OUR PRESCRIPTION LENSES, and in general we do a full prep in house. 

I also enjoyed diving the Atomic Subframe which is a twin lens mask. I found it to be sturdy and have a comfortable seal. The Subframe will likely remain my personal diving mask for some time. 



Josh is an optical technician and owner of See the Sea RX. He is a PADI instructor and has been involved in diving for more than 20 years. He has also worked as a sergeant at the Harris County, Texas, Sheriff's Office, which included time as the instructor for the dive team. Josh also holds a masters degree in data analytics from Texas A&M.

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Single Vision (Distance) Prescription Dive Mask Gallery

Single vision prescription dive mask examples

Single vision lens dive masks are used to correct distance vision while scuba diving or snorkeling. If you have a relatively simple prescription with minimal astigmatism, the premade stock lens masks may work well for you. If you require astigmatism correction, prism correction, or if your prescription falls outside of the range, you will need our custom prescription dive masks. Our custom prescription lens dive masks can correct for extreme corrections, high cylinders, and strabismus (with prism). Below are examples of our custom prescription dive mask lenses installed in masks we stock and masks sent to us from customers around the world.  If you want to see examples of bifocal dive masks, check out the link here

Single Vision Prescription Dive Mask Gallery

The MP208/Atum freediving mask is very popular with freedivers and spearfisherman. We often do this mask in bifocals, but here it is with single vision corrective lenses. We would discourage the use of this mask for individuals with sphere corrrections greater than +4ish. If you have questions about whether this low volume mask would work for you, don't hesitate to reach out.
The Atomic Venom Frameless has quickly become our most popular dive mask/scuba goggle- recently overtaking the Scubapro Synergy 2. Here is the single lens dive mask with our prescription distance lenses.
Here is a Cressi low volume mask with our prescription distance lenses. This mask, while a bit smaller can accommodate mild to moderate prescriptions well.
The Scuba Pro Synergy Twin in the older version (since been updated with the Scuba Pro Synergy II Twin) is the all time best selling series of dive masks at See the Sea due to its unique twin skirt seal. Moderate and mild prescriptions will get close to 100% lens coverage. Stronger prescritpions may result in smaller lenses.
This is a mask a diver sent to us for distance lenses. Every pair of prescription lenses we make is custom to your specific mask and prescritpion.
The Hunter mask is one of the less expensive masks we offer (But still a quality mask)- here we installed very strong prescription lenses (Over -20), but in general we recommend a different mask for stronger prescriptions.
Here is a Hunter low volume mask with prescription lenses. The hunter mask is also shown above right, with a much stronger prescription. You can see here how much larger the prescription area is with a moderate strength correction.
The M100, one of our most popular stocked masks, is shown here in the aluminum frame with clear skirt. This is with a fairly strong distance correction, and the m100 is recommended for stronger prescriptions over the Hunter mask for example.
The M100 Color Correction is one of the newer masks we stock at See the Sea. It provivdes a mirror lens and a magenta tint to provide more vivid colors at depth. Here the M100 is outfitted with custom distance prescription lenses.
The Scubapro Spectra Mini is one of our more popular masks for medium to smaller faced individuals. It also can accommodate stronger prescriptions.
The M200 pictured here and to the right in the discontinued yellow color, is my favorite mask for smaller faces and also it accomodates strong plus lenses. It features an aluminum frame and is available in clear and black skirts.
The m200 dive mask is also avialable in color correcting mirrored lenses. This is a special order item.
We used to stock the Oceanic Enzo, pictured above. We still can provide it on special requests and it can accommodate mild to moderate prescriptions well.
The Scubapro ghost mask with prescription lenses. We would only encourage the use of this single lens low volume diving mask for very mild prescriptions.
This is the most popular color of the Scubapro Spectra Mini- clear and blue with prescription distance lenses.
Here is a Seac spearfishing mask a diver sent in for prescription lenses. As we make all our prescription lenses custom, we were able to match the shape of the mask for this final product.
The Aqualung Mission dive mask has a unique shape which we matched with the prescription lenses here used to correct astigmatism for this diver.
The Atomic Frameless is a single lens dive mask available on See the Sea. We are able to install our prescription lenses on single lens masks, and you can see the final product here used to correct for distance and astigmatism.
The Atomic Subframe is likely the sturdiest twin lens mask we stock. The lenses installed in this mask are fairly strong, and the subframe can accommodate most prescription lenses. If your prescription is stronger than +/-6 in either way, we may suggest another mask.

If you take your glasses off to read...

If you take your glasses off to read on land, you may want to consider the below option when building out your single vision prescription lenses. This option, a check box in the build out processes, tells us to leave space at the bottom of the mask without prescription so you can see your gauges or computer clearly. If you need further assistance seeing your dive computer, you may want to consider bifocals. 

The M200 dive mask pictured here with our "see under" option, leaves space under the prescription lens for the diver to see their gauges without correction.
The scubapro synergy II with see under space. This can be customized to be as high or low as you would like.

Picking a dive mask for prescription lenses can seem to be a stressful task. Hopefully after seeing available options for various prescription ranges, we have made the selection a little easier. If you have any questions, don’t hesitate to reach out to us, and be sure to check out our other articles for more information. 



Josh runs See the Sea RX and has been diving for over 20 years, 15 of which have been as an instructor and trip leader.

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Bifocal Scuba Dive Mask Gallery

Bifocal dive mask lens gallery

Recently, I published a post on different bifocal scuba mask options, but I wanted to create a post with more images, so you can see examples of more options for bifocal lenses in your mask or when ordering a mask from us. Bifocal lenses correct distance vision as well as providing an add power for the near vision section. No more struggling to see your gauges or dive computer. Our prescription dive mask lenses- made custom to your prescription can be produced in as little as three days with rush fees (standard processing is 2-3 business weeks. for more information on our rush options, click here). 

Standard and ST35 Bifocals

Below are images of standard and ST35 bifocal masks. The main difference between the two bifocal types is the ST35 gives the diver a bit more near vision room. 

Tusa Freedom Ceos Dive Mask with bifocals. These lenses were installed in the customer's own mask, and due to the smaller size of the CEOS mask the prescription lenses provide almost 100% lens coverage.
The Hollis M3 is a popular twin lens mask. We do not sell the Hollis line, but this mask was sent int by a customer. Twin lens masks are my preffered masks for prescription lenses in general.
This mask was sent to us by a diver for bifocal lenses.
The M100 dive mask is one of our most popular masks on the See the Sea site. The masks costs under $100 before lenses despite its aluminium frame. The m100 is a great average fit mask, and it can accommodate stronger prescriptions.
Many divers are unsure whether single lens masks can accommodate prescription lenses. Here is a scubapro crystal vu with bifocal lenses installed. While the lines are difficult to see in this image, the mask does have the standard lined bifocal.
The Scuba Pro Synergy II remains the most popular mask on See the Sea. We have installed lenses in more Synergy II masks than any other mask in our history. The final lens product comes out near edge to edge on the Synergy, including here on this bifocal.
Seadive masks several mask models with a UV blocking lens. UV blocking lenses are becoming more popular in dive masks to help reduce exposure at the surface. Here we installed bifocals in a customer's mask.
Here is another Synergy II with bifocal lenses installed. We no longer stock the pink color, but can bring it in on special requests.
As previously stated, the Synergy II is our most popular dive mask. The clear and blue is also the most popular color. Bifocal lenses help scuba divers see their gauges, computers, and camera controls while also correcting distance vision.
The Tusa Paragon is another mask that blocks UV light. Here is a Paragon with lenses from See the Sea.
An Atomic Frameless dive mask with prescription bifocals installed at See the Sea RX in Houston.
This is a Deep See single lens dive mask with traditional bifocals installed. One questions a diver has to answer when picking a new mask is whether to get a black or clear skirt. Clear skirts do allow in more light but tend to yellow over time. Black masks are favored by underwater photographers.

Franklin Bifocal dive masks

Franklin bifocals are custom made by hand in our lab in Houston, Texas. The Franklin is the ultimate custom option for divers that want the most room for near correction. The franklin is fully custimizable, so divers can choose exactly what percentage of the lens they want for near and distance correction. Professional photographers often have more than 50% of the lens corrected for near and only a small portion for distance as the majority of their time is spent looking at a monitor or camera controls within arm reach distance. 
Another benefit of Franklin bifocals are for those with strong corrections. We can achieve an overall thinner lens design by using high index glass for both distance and near lenses in the mask. 
Franklin orders are not available online, and divers should call for pricing. 

The Atomic Venom Frameless mask is one of our favorites for franklin bifocals. This is the mask I am currently diving, and the seal even works for some of us with facial hair.
Another Atomic Venom Frameless mask with prescription Franklin lenses installed here in our lab.
Scuba Pro Synergy II with prescription Franklin Bifocals.
Atomic Frameless mask with Franklin Bifocals to correct both near and distance vision.
The M100 aluminum frame dive mask with frankklin lenses fora high correction.
Franklin lenses also provide more correction than a standard dive mask bifocal in single lens masks. Here are Franklin Bifocals installed in a Scubapro Gorilla mask.

If you need any help deciding what dive mask would work best for you or what lenses will work with your prescription, don’t hesitate to reach out to us. Stay safe and Happy Diving!

-Josh & The Team 

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Prescription Dive Mask with Color Correcting Lenses

Tinted lenses for color correction and Scuba diving

Seeing unique colors and seascapes we don’t normally encounter is one of the joys of snorkeling and scuba diving. Water, however, can limit some of our perception of color as we descend. Water and light interact differently than how we experience light on land. One of the most noticeable differences is color.

Water absorbs color as you descend, which in turn means, the coral reef becomes less vibrant. The water column absorbs colors in the order of the rainbow. Red is lost first, in as little as 20 feet. 

We receive frequent requests from snorkelers and divers about tinted and color correcting lenses for prescription lenses. 

In this post, and in the video above, I will discuss the advantages (And draw backs) of tinted lens dive masks, options available, and costs. 

Coral Reef in Mexico- Photographed by Josh with a Sony RX100 VI, Ikelite Housing, and DS160 strobe in December 2019.

advantages of color correcting lenses for prescription dive masks

The largest benefit of tinted lenses for underwater use is the color contrast and clarity by shifting the light as it passes through the tinted lenses. The mirrored finish on some of the tinted lenses can also reduce glare at the surface for those who are more sensitive to the sun.

One of the disadvantages, anytime you add a filter, you are reducing, even if slightly, the overall amount of light entering your eye.

I find the color shift to be pleasantly subtle, and after a moment or two of wearing the lenses, I often forget I am wearing a tinted lens dive mask, until I take it off. 

who should (and shouldn't) use tinted lenses while scuba diving?

Jay diving in Cancun, as shot by Josh, with a tinted scuba pro spectra dive mask with prescription single vision lenses.

Bringing back color sounds awesome?! Tinted lenses designed for scuba diving enhance the dive, but they are not for everyone. 

Who they are good for:

– Snorkelers & Divers who want to enjoy more color during a divce.

– Divers and snorkelers who are light sensitive. The tinted lenses often come with a mirror tint which can reduce glare at the surface.

Who should not use tinted lenses:

– Photographers and videographers. Any lens tint reduces the total amount of light that reaches the eye 

how to order a prescription dive mask

Currently,  we offer the M100 color correcting dive mask for divers and snorkelers that want color correcting and glare reducing features of a tinted lens dive mask. To order, simply go to our prescription dive mask order page. The M100 Color Correcting costs $124.00 and is available in all lens types including single vision (distance), bifocals, and reading glass. 

We recently published an article explaining the differences between our bifocal dive mask options. 


Can I order prescription lenses for my own tinted lens mask?

Yes! All our prescription lens options are available for your scuba diving mask even if it has color correcting lenses. Simply go to our prescription scuba mask lens order page, and click “I have a mask”. You can then select from available lens options and send us your mask! 

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New Dive Light add ons for Prescription Dive Mask Orders

High end diving light.

Dive light options for your dive mask purchase

As you descend through the water column, divers see a loss of color in the order of the colors of the rainbow. Most noticeably, reds are lost very quickly. This occurs because water absorbs various wavelengths of the light spectrum more rapidly than others. 

One way to counter this is by using a tinted lens mask. We do offer several prescription dive masks with these color correcting options such as the M100 (color correction model). Divers can also use a light bring back colors lost at depth. Both options are viable, but I love to have a little light in my BCD that helps me also look under crevices or as a backup during a night dive. 

To continue with our mission of helping divers see clear, we recently added two dive light options you can easily add to your dive mask order, which will help you see colors vividly during a day dive or even serve as a primary light at night. 

Introducing the Apollo Dive Light (MSRP $180) and the Lumo ($156).

In this article, I will go over my hands on experience with these dive lights, costs, and how to order them with your prescription dive mask.

High end diving light.
Apollo dive light with light shield extended.
High end dive light from See the Sea
Lumo Dive Light

Overview of the apollo & Lumo dive lights

Size & batteries

When I was first certified to dive (I don’t want to age myself here), I bought myself a brand new dive light. It took 8 D cell batteries, and I thought it was the brightest light they would ever be able to create for diving. Shortly after I bought that light, HID lights hit the market, but were very expensive. If you broke the bulb, it would be at least $100 to get a replacement.

The advent of LED lights have not only eventually reduced the cost of high end dive lights, but the size and energy consumption as well. Now a light that can fit in your hand has a bulb that will almost last forever and can serve as your primary dive light. 

Both the Apollo and Lumo dive lights are cheaper than my first dive light, smaller, and brighter. Both dive lights are about the same size, but the Apollo light (on the left in the image) is slightly longer.

The dive lights accept two CR123 batteries (not included) or 1 rechargeable 18650 battery (not included). My recommendation would be to purchase the slightly more expensive rechargeable batter as you will get much more use out of it (and CR123 batteries are not super cheap on their own anyway). Run time will depend on what mode you operate the light in, but moderate use should be several hours on a charge.


Control & Modes of the dive lights

Scuba dive light controls

I have  always preferred buttons to twist controls, but the Apollo light has me converted. My main complaint with twist controls is the risk of either opening the light or the controls being too difficult to utilize while diving. The Apollo solves this by having a free rotating control bevel that is separate from the main body of the light. You cannot risk flooding the light by rotating the bezel. You rotate the light to operate the modes including off, on brightness level 1, on brightness level 2, on brightness level 3, and flashing/sos. The bevel rotates easily, and there is a satisfying click as you change modes. As both models are made from lightweight aluminum, the Apollo feels great in the hand- well built and sturdy. 

The Lumo, the slightly cheaper of the two lights, operates with a push button. When turning on the light, you must hold the button down for 10 seconds (a safety feature designed to ensure it doesn’t turn on from a momentary bump in your bag or while traveling), which made me think my batteries were dead at first. Once the light is on, you cycle through the modes, which includes a flashing SOS mode with a quick push of the button.


The Apollo light has printed icons indicating what modes are available and what mode you are in without having to cycle through the beams. 

Beams & Special Features

The Apollo is the brighter of the two lights, but that is not the only difference when it comes to the light emitted by the different models. The Apollo has two innovative features. A removable diffuser which screws onto the end of the light as well as a shield that extends and retracts preventing the light from spilling into your eyes. Check out the gallery below to see the difference in beams between the lights as well as the diffuser on the apollo light. 

How to purchase a dive light with your prescription dive mask

Adding the Apollo or Lumo dive lights to your order is easy. After you build out your prescription mask, there is a section of available accessories. Click on either light to add it to your order. To start, build out your prescription dive mask here.

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Scuba Diving with Astigmatism

Scuba Diving with Astigmatism

If you wear glasses, you may wonder what options are available to you for scuba diving or snorkeling. Specifically, if you require cylinder correction for astigmatism, can scuba diving masks or goggles accommodate your visual needs while scuba diving with astigmatism?

In our post, we will cover:

  • Basics of astigmatism
  • Reading your prescription
  • Options for scuba diving with astigmatism

If you already know you want one of our prescription diving masks which can correct for astigmatism, from See the Sea RX, the leaders in underwater vision, click the button below to see our order page.

Order an RX Diving Mask with Astigmatism Correction

If you want to read more information about diving and astigmatism, keep on reading!

What is Astigmatism?

Astigmatism was first described by Thomas Young, who noticed his vision problems when he was only a student, and he released his report in 1801. George Airy obtained the first corrective lenses (cylindrical lenses)  in 1827. 
Simply put, astigmatism, is an irregular shape of the cornea causing various vision problems including distortion or blurred vision (refractive error). The underlying causes are not completely understood, but scientists believe genetics play a large role in the formation of the condition.

Astigmatism, the Eye, and Diving

Understanding your Prescription for Astigmatism Correction

Most of us have two eyes, and our doctors have to distinguish what corrective lens belongs to each eye. Some prescriptions make this simple by using R or Right for the right eye and L or Left for the right eye. Other prescriptions use the terms OD & OS.

OD and OS are Latin abbreviations:

  • OD- Oculus Dexter- Right Eye
  • OS- Oculus Sinister- Left Eye


There are several other fields on your prescription which are important when ordering a prescription dive mask. 

Sphere (SPH)

The sphere is your lens power vision, displayed in diopters. The sphere can be negative or positive, and the distinction is very important. Negative sphere powers correct for nearsightedness. Positive sphere powers correct for farsightedness. 

If your sphere power is greater than +/- 4, you may want to consider our high index glass options in our dive masks for scuba diving or snorkeling as the lenses become thicker as the power increases. At +/- 6, we require the use of our high index glass (+$60.00). 

The correction is equal in all meridians of the eye, meaning the lens is spherical. The sphere power does not correct for astigmatism. The cheaper premade dive lenses are only available in sphere powers, and do not correct for astigmatism.

Cylinder (CYL)

The cylinder described the lens power for astigmatism and this is one of the critical measurements to have when scuba diving with astigmatism. Like sphere, the cylinder correction is preceded by a positive or minus sign. 
The cylinder, unlike the sphere of the lens, is not distributed equally throughout the lens, but is curved in such a way to correct for the incorrect curvature of the cornea. See the Sea RX’s prescription dive masks are able to incorporate the cylinder correction of your prescription to ensure you can see clearly underwater.

If your prescription lists no value or SPH/Sphere written under cylinder or CYL, your doctor has not prescribed any astigmatism correction for your corrective lenses. 


Unlike Cylinder and Sphere, the Axis is not a power or standalone correction, but a description of how the cylinder correction should be implemented on the lens. The Axis, measured from 0-180 (standard protractor scale). In simple terms, the axis describes how the lens should be turned prior to insertion into the mask to ensure you can see correctly while diving with astigmatism.

Options for Scuba Diving with Astigmatism

Prescription Dive Mask

If you want to scuba dive or snorkel with astigmatism, our dive masks include cylinder corrections and can help ensure you see clearly while diving. We construct our prescription dive mask lenses out of glass and guarantee them for life. 

Contact Lenses

Wearing contact lenses helps millions of people see daily without the bulk of glasses. Lots of divers report being happy to wear contact lenses while diving; however there are several concerns with contact lenses and diving.

Specially during your dive training, you will have to flood your mask multiple times which can result in a lost lens which would be catastrophic for individuals with severe optical corrections. There are also potential risks of infection.

If you have any questions, don’t hesitate to call, email, or chat us!- Josh and the online ordering team for prescription dive masks from See the Sea RX. 


Order an RX Diving Mask with Astigmatism Correction


Additional Reading:

How to choose a dive mask for prescription lenses   

More about astigmatism