PTERIGIOS SURGERY (PTERIGION)

The term pterigion derives from Greek pterygion that it means " ala". One is a benign tumoración of triangular form that extends from the conjunctive one towards the cornea. This tumoración is placed in the interpalpebral crack, usually is bilateral and asymmetric and is more frequent in the nasal sector.

The incidence of pterigion varies according to the age and is greater in located regions 37º superficially and below the Equator, where the intensity of the ultraviolet radiation more is lifted. The growth of pterigion this related to the solar exhibition. At present, the progressive depleción of the ozone layer and the increasing popularity of the exhibition to the sun often without the suitable protection, make of pterigion an important problem of public health. To it must add the difficulty in his surgical treatment, and the risk that pterigion must to reproduce.

The surgery of pterigion must be realised by an expert ophtalmologist in the surgical techniques of ocular surface, like the free autograft of conjunctive, the transplant of limb and queratoplastia to lamelar.

Carrying out a correct surgery the patient will only be able to obtain good aesthetic results and a prevention of the recidiva or reproduction of pterigion.