Reading is impossible. This is a career-ending disease and nothing can be done to restore the lost vision. The problem is serious. The sunlight-related diseases have different symptoms and affect different parts of the eye. Cataract is a cloudiness of the lens.
Macular degeneration destroys the central part of the retina.
Cancer of the circumocular skin, pterygium and photokeratitis are afflictions of the front of the eye. Having estabilished that sunlight was the source of these eye diseases, vision scientists set out to learn what parts of sunlight were hazardous. Sunlight is radiation-pure, radiant energy. There is a range or spectrum of energy particles-low energy in the infrared, more energy rising continuously through the visible spectrum through the red, orange, yellow and green, high energy in the blue and violet and highest of all in the invisible ultraviolet. Ultraviolet radiation proved to be the cause of all the sunlight-related eye diseases axcept for macular degeneration.