What Causes Bump On The Eyeball With Pink Eye?

Hello, a while back (maybe around 2 weeks ago) I had received a version of pink eye in my right eye, and with that appeared a bump on my eyeball itself. Like a very light, light yellow bump partially appearing about 1/4th on my cornea the rest of the bump formed next to that... have you ever heard of anything like that before off the top off your head? I asked because I can feel it under my eyelid and it is a bother, the part over my cornea makes it lighter (my eyes are naturally brown, and it make that part a very light brown, almost like a milky brown)