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A pterygium of the eye (pl.: pterygia or pterygiums, also called surfer's eye) is a pinkish, roughly triangular tissue growth of the conjunctiva onto the cornea of the eye. [2]
Popliteal pterygium syndrome, a congenital condition affecting the face, limbs, or genitalia but named after the wing-like structural anomaly behind the knee. Pterygium (eye) or surfer's eye, a growth on the cornea of the eye. Pterygium colli or webbed neck, a congenital skin fold of the neck down to the shoulders.
Pterygium inversum unguis or ventral pterygium is characterized by the adherence of the distal portion of the nailbed to the ventral surface of the nail plate. [3]: 788 The condition may be present at birth or acquired, and may cause pain with manipulation of small objects, typing, and close manicuring of the nail.
A webbed neck, or pterygium colli, is a congenital skin fold that runs along the sides of the neck down to the shoulders. There are many variants. There are many variants. Signs and symptoms
Pseudopterygium is the conjunctival adhesion to cornea caused by limbal or corneal inflammation or trauma. The pseudopterygium can be easily distinguished from pterygium by bowman's probe test. [1] Because of the lack of adherence of pseudopterygium at every point, the probe can be passed beneath it at some point.
The central cornea is clearer than the periphery. Cystinosis: Cystinosis is a rare autosomal recessive metabolic disease characterized by elevated levels of cystine within the cell. [23] Early deposition of cystine crystals in the cornea cause tinsel-like corneal opacities. [24]
Pterygium unguis (or dorsal pterygium [1]: 660 ) forms as a result of scarring between the proximal nailfold and matrix, with the classic example being lichen planus, though it has been reported to occur as a result of sarcoidosis and Hansen's disease.
It is seen as a yellow-white deposit on the conjunctiva adjacent to the limbus (the junction between the cornea and sclera). [3] (It is to be distinguished clinically from a pterygium, which is a wedge shaped area of fibrosis that may grow onto the cornea.) A pinguecula usually does not cause any symptoms.