الفهرس 
Introduction
Management of pterygiumOnly 14 pages are availabe for public view
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Abstract
Reviewing the literature for the pathology and ,management of pterygium, it was found that there were many theories for the aetiology of pterygium, the in¬’fianunatory theory that gained agreement from many aut¬ degeneration theory which represented the seoondary 0hanges in the prooess of pterygium growth, ; the neoplastic theory whioh was not aooepted beoause of the absenoe of neoplastio ohanges in the tissue of pterygiwn, the irradiation theory which oonsidered exposureto ultraviolet radiation to be the main aetiologloal r0factor for pterygium formation, the hereditary theory considered pterygium to be autosomal dcninant, but authors stressed the importanoe of environmental i faotors rather than hereditary factors. Other theories as deficiency theory, thrombosis of conjunctival vessels lmeohanioal trauma by hairs, warts, cysts, abnormal tears. The histopathology of pterygium showed epithelial ohanges in the form of thickening, thinning, goblet cells, pseudoglandular formation, and the stroma showed many inflammatory cells, neovascularisation, collagen, elastic tissue and hyainisation.