It is a vascular,triangular thickening of a portion of the conjunctiva with its apex resting on the edge of the cornea.The most frequent location of a pterygium is over the internal rectal muscle.Pterygium grows very slowly and has a tendency to spread over the cornea,though rarely seen to grow beyond the center of pupil.
Constitutional treatment in homeopathy is quite satisfactory.

Symptoms/Problems Remedy Frequency(Doses)
Head remedy Zincum sulph.1M and above fortnightly(6)
If caused by exposure to cold and wet;chilly,fat and flabby patient Calcarea carb.200 or 1M weekly(6)
With scrofula and grandular enlargements Chimaphila 30 4 hourly
Smarting and stinging pain at inner canthus;profuse lachrymation and marked photophobia;worse in cold air and at night;better in warm room Zincum met.30 4 hourly