The light through the cornea, lens and vitreous to the retina. Most structures eye is affected by diseases caused by excessive sun exposure.

The cornea: the lesion is the most famous snow ophthalmic which corresponds to a burning of the surface layer of the cornea (the epithelium). A very deep pain combines intense eye redness, tearing and impossibility to open eyelids. The injury healed in most cases without sequel if adequate treatment is administered to the patient.

The lens: most of the UVA is absorbed by the lens. The result is a reduction in the transparency of it. So when sun exposure is excessive, cataract appears that is a clouding of the lens. Follows a significant decline in visual acuity and visual colors.

UV were also suspected to accelerate the loss of elasticity of the lens and thus make the earliest onset of presbyopia. In countries where very sunny protecting his little eyes, presbyopia begins around 35 years instead of 45 years in our country.

Retina: the fabric is the most exposed to the harmful effects of radiation and light retinal lesions are located primarily in the center of vision (macula).

Macular degeneration (AMD) has become the leading cause of poor vision after 50 years in Western countries. Its frequency is increasing and it is now nearly 10% of people over 65 and nearly 30% after 75 years.

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