This proud flash which begins to grow from the inner edge of the eye expanding trough all the white part (conjunctive) until reach the pupil. This has colour pink off ? white and becomes red, irritating and producing nuisance, above all when the person is under the sun or in contact with the powder, soil.



The precision has not been defined totally. The pterigión is more frequent in persons who spend many time outdoors, specially during the summer. The long exposition to the solar light, above all to the ultraviolet rays and the chronicle irritation of the eye because of the environmental dry conditions and the powder seems to performance an important paper. A dry eye can contribute to the development of the pterigión.


Surgical: Plastía free of conjunctiva (Auto graft ert of conjunctiva), is the technique that has showed better results at the World level.