UV - RADIATION THERAPY FOR EXPERIMENTAL CORNEAL DISEASES (INFECTION)

Abstract

Experimental and clinical studies have begun to draw attention to the role of ultraviolet radiation in the treatment of children and deblitated patients or people living in crowded sunless areas. Ultraviolet radiation was used in the treatment of some eye diseases like blepharitis, chronic catarrh, acute forms of the trachoma, inflammatory and ulcerative conditions of the cornea. Newton found that sunlight or white light is made of different colours red, orange, yellow, green, blue, indigo and violet, Ritter discovered the presence of invisible rays beyond the violet end of the spectrum. Sunglight produces an ultraviolet radiation between 2-5 mw/cm, wavelengths range between 280-400 nm depending on geographic location and season of the year. Our common sources of interior lighting emit relatively significant levels of ultraviolet radiation between 300 and 400 nm wavelength.