REFRACTIVE & CORNEA
PTERYGIUM
What is a pterygium?
- A non-cancerous fleshy growth of the conjunctiva (thin clear membrane on the surface of the eye)
- UV exposure is the main cause, therefore it is common in people who spend a lot of time outdoors in the sun
- They can grow across the cornea which increases astigmatism and results in distorted vision
- Similar in appearance to a pingueculum, which is also a raised growth on the white of the eye but it does not grow across the cornea
What are the symptoms of a pterygium?
- Typically painless, it can be present in one or both eyes
- Can cause dry, itchy, gritty eyes
- If the pterygium is raised, it can cause irritation, redness and inflammation
- Distorted/blurry vision
How is a pterygium treated?
- Eye drops or ointment can be used to manage the symptoms
- Surgery is recommended if the growth is significant and spreading across the cornea
- Some choose to have surgery for cosmetic reasons
- Surgery is performed as a day procedure under local anaesthetic
- The pterygium is carefully removed and the raw area is covered by gluing a conjunctival autograft (clear tissue removed from under the upper eyelid) over the top
Can you prevent a pterygium?
- Wear good quality sunglasses when outdoors
- A wide brimmed hat will help protect your eyes from sun and wind exposure
- If you are involved in water sports (surfing, fishing) you should always wear sunglasses