
Often, farsighted scuba divers must wear a prescription glass bifocal mask, or have adhesive magnifying lenses attached to their existing mask. Now there’s a new alternative, essentially detachable underwater reading glasses.
SeeDeep glasses, currently the subject of an Indiegogo campaign, are made by Dutch startup SeeDeep Diving Optics. They are worn over the user’s third face mask and are held in place by a rubber head strap.
The glasses themselves feature scratch-resistant polycarbonate lenses with magnifications of +1, +1.5, +2.0, and +2.5. These lenses are connected to each other by a metal nosepiece and to the headband by metal end pieces on both sides. A non-slip silicone pad on the back of the latter helps keep the glasses from sliding on the visor.
As an added bonus, the glasses can move up and down the visor depending on the situation – but they don’t have stay at the bottom.

See Deep Diving Optics
The idea is that if a user isn’t constantly looking at something directly in front of them when diving (such as a coral head), they can carry the glasses with them, but don’t wear them most of the time, leaving their eyes open. The entire far field of vision is unobstructed—something not possible with more expensive prescription masks or bonded lenses.
Of course, the user can also leave the glasses exist Look at them only when necessary throughout the dive.
SeeDeep glasses are available in standard, premium and limited edition Exclusive models with metal parts made of aluminum, stainless steel and titanium respectively. Commitment prices are $75 for Standard and $151 for Exclusive. If all goes well, they should ship next August.
You can see the glasses in action in the video below.
See Deep Diving Optics