-Nearly 90% of people who use computers for more than three hours a day suffer eyestrain or some form of eye trouble. (US NIOHS survey).

The basic lens design of these superb aids to clearer vision starts where normal ‘contrast’ glasses or simple coloured filters leave off. Originally created for military and other users of computer, radar, oscilloscope and similar displays, they give a fantastic improvement in clarity, and contrast. They significantly reduce both glare and eyestrain.