Has anyone heard of pterygium conjunctiva?

Yes: A pterygium is a growth from the white of the eye extending to the surface of the cornea. The root of the word means "wing" as it appears to extend onto the clear cornea as a wing. When they get large enough, they may block the vision or cause astigmatism.

Yes: Yes. A pterygium is an overgrowth of tissue from the conjunctiva onto the cornea caused by exposure to ultraviolet light.

Pterygium: Pterygium:very common, abnormal growth of clear covering (conjunctiva) of white part of the eye (sclera) over the cornea (window of the eye). If severe and causing discomfort or red, it can be removed with surgery. It is generally benign. It is due to excess sun/UV exposure usually. Prevention is only remedy. Avoid sun (sunglasses, hat); avoid smoking. Natural rx info: see eyedoc2020.blogspot.com

Alternate term: Pterygia arise from the tissues of the conjunctiva so, it could be labeled as pterygium conjunctiva. Most simply term it pterygium and describe its location, advancement on the cornea and its inflammatory appearance. That is usually sufficient for most records.