pingueculae rarely warrant removal. Pterygium only if large, growing and causing corneal astimatims.
JCH MD
I have a small pinguecula in my eye and went to see local eye doctor.I was told that pingueculae and pterygium are treated almost the same way: with amniotic graft and NO stitches, removing the whole growth.Here is the link that helped me to make my decision: http://www.gulanivision.com/Pterygium_Pinguecula