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Scuba diver with bifocal lenses in half mask. Diving masks can be fitted with prescription lenses for divers needing optical correction to improve vision. [19] Corrective lenses are ground flat on one side and optically cemented to the inside face of the mask lens. This provides the same amount of correction above and below the surface of the ...
Regular spectacles can be worn in most helmets, but cannot be adjusted during the dive. Corrective lenses can be glued to the inside of half-masks and some full-face masks, but the distance from the eyes to the lenses may not be optimal, and some correction may be needed to compensate for the increased distance from the cornea to the lens.
Diving masks can be fitted with lenses for divers needing optical correction to improve vision. Corrective lenses are ground flat on one side and optically cemented to the inside face of the mask lens. This provides the same amount of correction above and below the surface of the water as the curved surface of the lens is in contact with air in ...
A diver in a pool wearing an AGA full face mask A diver wearing an Ocean Reef full face mask Head protection helmet for use with Ocean Reef full face diving mask. A full-face diving mask is a type of diving mask that seals the whole of the diver's face from the water and contains a mouthpiece, demand valve or constant flow gas supply that provides the diver with breathing gas. [1]
Divers who need corrective lenses to see clearly outside the water would normally need the same prescription while wearing a mask. Generic corrective lenses are available off the shelf for some two-window masks, and custom lenses can be bonded onto masks that have a single front window or two windows. [60]
To meet most national standards, spectacles must include side shields to reduce the ability of debris to get behind the lenses from the side. Safety glasses can often mount insert frames to mount prescription corrective lenses for users with suboptimal vision. Such insert frames are mounted behind the protective lens.
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