Vision is directly or indirectly related to 80% of all sensory information, it is the single most important consideration in sporting performance.
Not only will corrected vision greatly improve your enjoyment, by improving your performance it will make diving safer for you and your buddies.
An American study has shown that some 75% of American adults use some kind of visual correction and in Singapore between the late 70's and early 2000 there was a rise from 26-83% of 17 year old conscripts requiring glasses.
Though Asians are particularly susceptible to myopia the incidence of visual errors is increasing throughout the world, and this is further complicated by the finding that approximately one third of all people who require glasses also have astigmatism.
Whilst ready made "off the shelf" powered lenses are available for some myopia (short-sightedness) and a very few for hypermetropia (long-sightedness) they cannot correct astigmatism.
Dive Vision can supply any prescription to match your glasses exactly.
Why not contact lenses ?
Mainly because of the risk of infection. A protozoa called Acanthamoeba found in salt and fresh water, can infect soft contact lenses which can result in painful keratitis or even, worst case scenario, the loss of an eye. In salt water there are also the halophilic organisms called Vibrio alginolyticus and Vibrio parahaemolyticus which although rare are particularly devastating.
If the mask floods not only can contact lenses be displaced, but due to the higher osmolarity of sea water over tears, soft lenses can adhere to the eye and require flushing with normal saline to be removed from the eye. How available is that at most dive sites?
Some divers also experience blurring after diving in rigid contact lenses, due to the difficulty of gas exchange causing bubbles behind the lenses during normal decompression. Though this is not harmful and does not usually last long.
A Prescription Dive Mask is the safest way to correct your vision when diving.
This is particularly relevant when it is accepted that scuba diving is one of the fastest growing sports for the over 50's. Even if you have no need for distance spectacles, after 50 when the eyes become presbyopic (unable to focus on near objects) you need a reading correction to enable you to see your gauges and wrist computer. A prescription dive mask can be bonded with a reading only segment, or a bifocal, if a reading and distance correction is required and without the major problem of fogging associated with a clip-in frame.