A review of the effect of water on vision revealed that all aspects of vision in air are altered in an underwater environment. The advantages and disadvantages of available means of correcting ametropia for divers were evaluated. Selection of the optimum system for a diver is dictated by his individual visual requirements and needs. A survey questinnaire was sent to dive shops throughout the United States to determine availability and popularity of each method of optical correction. Ready-made optical masl
Files are restricted to Pacific University. Sign in to view.