Pterygium: What Is That Growth on the White of My Eye? astigmatism · eye growth · eye irritation · pinguecula · pterygium · sunglasses · surfer's eye · UV protection · Oct 09, 2026 That bump or wedge on the white of your eye is usually a pinguecula or a pterygium, and sun is the big driver. Here's how they differ, how we care for them, and when a growth needs a prompt look.