Double headed pterygium with pseudoexfoliation

Double-headed pterygia are a rare benign fibrovascular overgrowths of the nasal and temporal bulbar conjunctiva onto the cornea, which have mostly a triangular appearance. The development of pterygia is multifactorial, including environmental irritants, for example long-term ultraviolet-B damage, wind, dust, chemicals, air pollution and hereditary factors. A pterygium can usually be diagnosed by slit-lamp examination.

VContributed byDr. VedaFinal year resident, Chennai

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