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