Pterygium

pterygium

A Pterygium is a triangular sheet of fibrovascular tissue over the conjunctiva, which invades the cornea. It has three parts – head or apex, neck and the body.  It frequently follows a Pinguecula.

The nasal side is affected first but it may be bilateral. Numerous small opacities i.e. deposits of iron (Stockers Line) may lie in front of blunt apex of Pterygium.  It is a degenerative condition of the subconjunctival tissue which proliferates as vascularised granulation tissue.

Treatment – Atrophic Pterygium – Left alone with periodic follow up. Progressive Pterygium – Simple Excision ( Ombrains Method) . Pterygium involving pupillary area – Simple excision or Resection of the pterygium with Key hole lamellar keratoplasty