Types of Lenses & Glazing

The Superior Choice: Prescription (RX) Lenses for Dive Masks

When it comes to diving, having the right equipment is not just a matter of convenience, it's a matter of safety and enjoyment. One crucial aspect of this equipment is the dive mask, and more specifically, the type of lenses used in these masks. While off-the-shelf lenses available in dive shops and supermarkets might seem convenient and cost-effective, prescription (RX) lenses for dive masks are invariably the better choice for several reasons:

Accurate Pupillary Distance (PD) Measurement: One of the significant drawbacks of pre-made lenses is that they do not take into account the individual's pupillary distance. Incorrect PD can lead to blurred vision, eye strain, and even headaches. In contrast, prescription lenses are customized to your exact PD, ensuring clear and comfortable vision.
Consideration of Individual Visual Needs: Pre-made lenses do not account for specific visual requirements such as astigmatism or varying strengths for each eye. Prescription lenses, on the other hand, are tailored to your unique prescription, accommodating any astigmatism and differing visual needs for each eye.
Reduced Risk of Headaches and Concentration Issues: Using lenses that are not perfectly suited to your vision can cause headaches and concentration problems, which can be particularly hazardous underwater. Prescription lenses mitigate this risk by providing optimal vision correction.
Cosmetic Appeal of Pre-Made Lenses: It's true that pre-made lenses have a cosmetic advantage since they offer consistent vision correction across the entire glass. However, as outlined in our "Functionality Comes First" approach, the primary goal of a dive mask is to provide clear and safe vision, which is best achieved with customized prescription lenses.

Progressive lenses while diving

Diving is an enthralling experience that uncovers both the vastness of the ocean and the minute details of the underwater world. For divers struggling with vision at both distance and close range, progressive lenses can be a true boon. These lenses ingeniously blend corrections for both far and near sight into a single lens, thus providing a seamless visual experience underwater.

Our specialized progressive lenses for divers feature a fixed transition zone of 18mm, ensuring a precisely defined shift between distant and near vision areas. This design offers multiple advantages, significantly enhancing the functionality of dive masks and diving masks. These lenses transform the standard diving mask into a more versatile and vision-friendly accessory, essential for divers who need vision correction to fully appreciate the underwater marvels.

Clarity on Two Levels: Bifocal lenses provide clear vision at both distance and near range by having two clearly defined areas on a single lens. This enables divers to see both distant objects and details right in front of them with clarity, greatly enhancing the utility of dive masks and diving masks.
More Widely Known as "Bifocal": While the term "Franklin" might be familiar in some circles, "Bifocal" is more understandable to the average consumer. By using this term, we ensure that our customers immediately grasp the benefits these lenses offer for their dive masks and diving masks.
Less Adjustment Required: Unlike progressive lenses, which have a seamless transition between different strengths, bifocal lenses with Franklin lenses provide clear, separate areas for distance and near vision. This can be more intuitive and easier to use for many divers, especially when it comes to reading instruments or cameras underwater.
Improved Focus: The Franklin lens design offers a distinct division between the two vision areas, allowing for more precise focusing, especially in critical underwater situations. This feature is particularly beneficial in dive masks and diving masks, where clear vision is essential for safety and enjoyment.

Enhanced Comfort: The constant need to switch between different diving glasses for distance and near vision can be impractical and disruptive. With our progressive lenses, divers can enjoy the ocean's splendor without the need to constantly change glasses. This feature makes dive masks and diving masks more user-friendly and convenient, allowing for a more immersive and enjoyable diving experience.

In summary, progressive lenses for diving offer a combination of comfort and functionality, allowing divers to experience the underwater world in all its beauty. Our lenses with the fixed transition zone of 18mm ensure clear and consistent vision, allowing divers to fully focus on the adventure underwater.

Bifocal Lenses for diving: The Advantages of Franklin Lenses

Diving offers a unique experience that encompasses both the endless expanses of the sea and the fascinating details of the underwater world. For divers who struggle with vision both at a distance and up close, bifocal lenses, also known as Franklin lenses, are a real advantage.

These lenses combine two different strengths in a single lens, correcting both distance and near vision.

Why do we use Franklin lenses and refer to them as 'bifocal' and why we don't use a classic bifocal with the window you know?

Clarity on Two Levels: Bifocal lenses provide clear vision at both distance and near range by having two clearly defined areas on a single lens. This enables divers to see both distant objects and details right in front of them with clarity, greatly enhancing the utility of dive masks and diving masks.
More Widely Known as "Bifocal": While the term "Franklin" might be familiar in some circles, "Bifocal" is more understandable to the average consumer. By using this term, we ensure that our customers immediately grasp the benefits these lenses offer for their dive masks and diving masks.
Less Adjustment Required: Unlike progressive lenses, which have a seamless transition between different strengths, bifocal lenses with Franklin lenses provide clear, separate areas for distance and near vision. This can be more intuitive and easier to use for many divers, especially when it comes to reading instruments or cameras underwater.
Improved Focus: The Franklin lens design offers a distinct division between the two vision areas, allowing for more precise focusing, especially in critical underwater situations. This feature is particularly beneficial in dive masks and diving masks, where clear vision is essential for safety and enjoyment.

In summary, bifocal lenses with Franklin lenses offer an ideal solution for divers who need vision correction for both distance and near vision. The clear separation between the two vision areas allows divers to fully enjoy the underwater world in all its splendor while diving safely and comfortably. We adopt this technology because we believe it provides the best visual experience for our customers.

Single Vision for diving

Diving requires precise vision to fully capture both the vastness of the sea and the nuances of the underwater world. Single vision lenses offer an ideal solution, especially if you need vision correction in just one area, whether for distance or up close.

1. Full Lens Correction: For those who need continuous vision correction, be it due to nearsightedness or farsightedness, full lens correction provides uniform correction across the entire lens. This ensures constant and clear vision in every underwater situation, enhancing the functionality of dive masks and diving masks.

2. Partial Lens Correction - The Best of Both Worlds:

For Nearsighted Individuals: If you only need correction for distance, you can opt out of the lower reading part of the lens. This allows you to look beneath the corrected part when needed, for instance, to closely inspect your dive computer or equipment.
For Farsighted Individuals: If your primary need is for near correction, you may choose to have only the lower reading part of the mask lens corrected. This gives you the advantage of clear near vision, while the upper part of the lens remains uncorrected, allowing for natural distant vision.

3. Flexibility as Needed: The option to choose between full and partial lens correction offers divers a tailor-made solution. Depending on your individual visual requirements, you can select the optimal lens configuration that enhances your diving experience.

4. Unmatched Clarity and Flexibility: Single vision lenses for diving provide an unparalleled combination of clarity and flexibility. They enable divers to enjoy the underwater world in all its beauty while ensuring they have optimal vision in all situations. When selecting the right lens, divers can be confident that their specific visual needs are taken into account, making dive masks and diving masks more effective and personalized.

Size of the Lens in Prescription Dive Masks: Functionality Comes First

In the process of prescription glazing for diving masks, our primary focus is on providing the best possible visual quality. Our approach emphasizes creating lenses as large as possible to facilitate an optimal visual experience. However, several key factors influence the final size and shape of the lenses:

Prescription Strength: The strength of the vision correction affects the lens's shape and size. For instance, a lens with a high positive strength might have limited size compared to one with a lower correction.
Pupillary Distance: This impacts the precise positioning and size of the lens. It's crucial that the lens is correctly centered to ensure clear vision.
Size and Shape of the Mask: Each mask model has specific dimensions that can influence the shape and size of the lens.
Blank Availability: Depending on the available blank diameters, there are limitations on the maximum possible size of the lenses.

We want to emphasize that the size of the lens is significantly determined by these technical and optical requirements. While we always strive to cover as much of the mask lens area as possible, it is not always feasible to cover the entire surface area.

We ask our customers for understanding regarding these technical realities. Nevertheless, we assure that, regardless of the size and shape of the lenses, your vision underwater will always be optimal and clear. A diving mask is primarily a functional product – the goal is safe and flawless vision underwater, and that is exactly our priority in every lens fitting.

Here's an example of a mask with very high positive values.

The centering is maintained, and there are no compromises in the field of vision. It's as if you were wearing a small round pair of glasses. The procurement of lenses or glass blanks is challenging and time-consuming. Not all blanks are always available in large diameters. The size of the glued lenses also depends on the pupillary distance, prescription values, and other centering values. Additionally, the size of the mask and the distance between the lenses play a role.