Pterygium

 
This 45 year old man came to his doctor about a triangular shape growth in the inside corner of both eyes.  It had been present for a long time but seemed to be increasing.  There was no pain, no discharge and no visual problem.  The internal eye exam was normal.  What is the diagnosis?
These common conjunctival growths are called a pterygium (pronounced "teryjium").  We don't know what causes