Pterygium Flashcards
What is pterygium?
A degenerative condition of the conjunctiva where a triangular fibrovascular fold of conjunctival tissue adheres to the cornea, usually on the nasal side.
Where does pterygium most commonly occur on the eye?
It is more common nasally.
Is pterygium usually unilateral or bilateral?
It is usually bilateral but often asymmetrical.
What are the early signs of pterygium?
Scarring, thickening, and distortion of the bulbar conjunctiva.
What type of corneal opacities appear in pterygium?
Small grey corneal opacities near the limbus.
What happens to the conjunctiva in pterygium?
The conjunctiva overgrows the corneal opacities.
What vascular change is seen in pterygium?
There is relatively rich surface vascularisation over the pterygium.
What effect does pterygium have on the cornea?
It causes flattening of the cornea in the horizontal meridian.
What are the common symptoms of pterygium?
Mild irritation, redness, dryness, and foreign body sensation.
What cosmetic concern might a patient with pterygium have?
Visible growth of conjunctival tissue on the cornea.
How is pterygium managed in mild cases?
Similar to pinguecula, with no urgent intervention.
When should pterygium be referred for further treatment?
Routine referral is needed if there is extreme discomfort or for surgical removal.
Can pterygium cause visual disturbances?
Yes, it may lead to visual changes due to corneal flattening.
What might patients with pterygium feel due to its growth?
A foreign body sensation in the eye.
What surgical option is available for pterygium?
Surgical removal can be done if it causes significant discomfort or cosmetic concern.
