This site provides general eye-health education. It cannot replace individual assessment by a registered doctor, and does not offer personal diagnosis, prescriptions, bookings, sales or referrals.
If translations differ or are incomplete, the Traditional Chinese (zh-Hant) text on this site prevails.
Cornea and ocular surface · AG
Pterygium — lifestyle notes
Hats and sunglasses as habits, not a shop
Last reviewed: 2026-10-06 · 潘家健醫生
Key points
Pterygium links to long-term UV and wind/dust; it can cause foreign-body sensation, astigmatism or cover the visual axis.
Everyday sun protection is the education focus — not a product pitch.
Surgery follows symptoms and examination.
This cannot replace a registered doctor visit.
UV, wind and dust associate with pterygium. A hat and sunglasses are daily habits, not a product pitch on this site. Surgery is individual if the growth threatens sight or comfort.
This is general medical information, not a diagnosis, and cannot replace an in-person consultation with a registered ophthalmologist, refraction, or a dilated fundus exam. It is not advice to use any medicine or undergo any procedure. Medicines (including off-label use), laser or surgery must be decided by a registered doctor after examination, according to indications and Hong Kong registration. Figures from the literature are published averages, not any clinic’s results. This site does not book, prescribe or refer. Do not change treatment on your own.
