The transparent anterior segment of the human eye (cornea and lens), as wellrnas neural retina are greatly affected by dose dependent UV radiationrnexposure.rnThe histopathological changes increased along with irradiation intensity andrnUV-B exposure.rnThe most severe corneal lesions were observed following eye exposure tornsome large doses of 0.72 J/cm2 to 1.2 J/cm2. The injuries caused by UVrnirradiation to cornea are named photokeratitis also known as ultravioletrnkeratitis. Photokeratitis is characterized by exfoliation of the cornealrnepithelium, diminished visual perception, inflammation, edema, eye redness,rnand burning-like pain from the ocular surface. Moreover, UV irradiation canrnalso go deeper through the corneal epithelial layer and provoke inflammatoryrnresponses that involve the full corneal thicknessrnThe radiation that hits the lens is first filtered by the lens capsule and at 300nmrn(range from 290 to 315 nm) wavelength, approximately 60% of the radiation isrntransmitted by the anterior capsule. The transmitted radiation inducesrnapoptosis in the lens epithelial cells and thereafter the cortical fibers whichrncontribute to the formation of lens cortical opacities. Because lens epithelialrncells are responsible for maintaining much of the homeostasis of thernunderlying fibers, damage to lens epithelial cells may also result inrnabnormalities in lens fibers. For proteins, longevity is commonly assumed tornbe correlated with long-term retention of native structure.rnThe irradiations ranging from 380-520 nm contribute to degenerate outerrnnuclear layer area of the retina. Shorter wavelength light also is the mostrnhazardous it is known to generate reactive oxygen species (ROS) in thernretina. The retinal pigment epithelium is especially susceptible to oxidativernstress because of its high light, oxygen tension, fluorophore andrnmembrane lipid levels.rnAcute and chronic exposure of the eyelid to UV radiation causes commonrntypes of skin lesions around the eyelids that frequently result in basal cellrncarcinoma, squamous cell carcinoma, sebaceous cell carcinoma, andrnmalignant melanomarnIn conjunctiva UVB at the dose of 0.72 J/cm2 per day showed conjunctivalrnepithelium metaplasia and loss of goblet cells thereby decreasing of tearrnquantity