What is pterygium?

  • (noun): A thickened triangular layer of conjunctiva extending from the nasal edge of the eye to the cornea; pterygia arise from irritation of the pinguecula.

Pterygium

Pterygium refers to any winglike triangular membrane occurring in the neck, eyes, knees, elbows, ankles or digits.

Read more about Pterygium.

Some articles on pterygium:

Pterygium (conjunctiva) - Pathology
... Pterygium in the conjunctiva is characterized by elastotic degeneration of collagen (actinic elastosis) and fibrovascular proliferation ... It has an advancing portion called the head of the pterygium, which is connected to the main body of the pterygium by the neck ... Sometimes a line of iron deposition can be seen adjacent to the head of the pterygium called Stocker's line ...
Pterygium Unguis
... Pterygium unguis (also known as "Dorsal pterygium") forms as a result of scarring between the proximal nailfold and matrix, with the classic example being lichen planus ...
Pterygium - Natural History
... A pterygium grows very slowly ... Usually it takes several years or decades to progress, but occasionally growth may be rapid in the presence of inflammation such as Blepharitis ...
Pterygium (conjunctiva) - Treatment
... Today a variety of options are available for the management of pterygium, from irradiation, to conjunctival auto-grafting or amniotic membrane transplantation, along with glue and suture application ... As it is a benign growth, pterygium typically does not require surgery unless it grows to such an extent that it covers the pupil, obstructing vision or ... However, no reliable medical treatment exists to reduce or even prevent pterygium progression ...
Popliteal Pterygium Syndrome
... Popliteal pterygium syndrome (PPS) is an inherited condition affecting the face, limbs, and genitalia ... on the basis of the most unusual anomaly, the popliteal pterygium (a web behind the knee) ...