What is the name for the fibrovascular growth that invades the cornea and originates in the conjunctiva?

The fibrovascular growth that invades the cornea and originates in the conjunctiva is known as a pterygium. This condition often appears as a triangular-shaped growth on the surface of the eye. It can expand over time, invading the corneal tissue, which may lead to vision problems if it obstructs the visual axis. Pterygia are commonly associated with environmental factors, such as UV exposure, and they can cause irritation and discomfort.

In contrast, a chalazion is a blockage of an oil gland in the eyelid, leading to a localized swelling but does not involve the cornea or originate from the conjunctiva. A pinguecula is a benign yellowish spot on the conjunctiva that does not invade the cornea but is often related to sun exposure. A stye, or hordeolum, refers to an infection of an eyelid gland, causing a painful lump, and is not related to the cornea or the conjunctiva in terms of fibrovascular growth.