
Sunglasses With UV
When buying sunglasses, look for those that filter ultraviolet (UV) light, the tumor-producing component of sunshine, and thereby block its entry to the eyes. This helps to prevent cancer of the iris., the colored tissue that surrounds the pupils. UV light is now also though to be a causative factor in some eye diseases formerly attributed to "aging."
Thus, the Western Journal of Medicine reports, the cumulative effect of UV on the retina over a period of muscular degeneration, one of the most common causes of failing vision, even blindness, in the elderly.