A Pinguecula is a growth on the conjunctiva, or clear membrane that covers the white part of the eye. It is a fairly common growth and is non-cancerous. It is often located on the portion of the conjunctiva closest to your nose. Pingueculae usually appear as yellowish bumps or patches, which are deposits of calcium, fat, and/or protein. The cause of a Pinguecula is not known, but UV light exposure is thought to be a factor. Pingueculae do not require treatment and rarely cause any discomfort.