Eye Disease

Pterygium

More than an ordinary eye condition — a progressive proliferative disease

Pterygium is an eye condition in which fibrovascular tissue proliferates from the inner conjunctiva (the white of the eye) toward the cornea (the dark pupil area), growing in a triangular shape.

Commonly called a “surfer's eye,” it is only a cosmetic concern at first, but if left untreated it can invade the cornea, causing astigmatism or reduced vision — so timely treatment is important.

Main causes of pterygium

UV exposure
The leading cause — prolonged UV exposure degenerates conjunctival tissue.
External irritation
Fine dust, strong wind, dry air — persistent irritants trigger abnormal tissue growth in defence.
Genetic factors
With pterygium in family history, the chance is relatively higher — regular checkups are advised.

Main pterygium symptoms

Suspect pterygium if these symptoms appear

Visible signs

White membrane or red tissue beside the pupil in the mirror

Discomfort

Persistent gritty foreign-body sensation and stinging

Cosmetic

Eyes always look red and tired even when you're not

Reduced vision

Blurred vision or a sudden surge in astigmatism

Tailored solutions by stage of progression

Rather than rushing to surgery, pterygium needs accurate, stage-appropriate treatment first

Early stage

Symptom relief & monitoring

Artificial tears and anti-inflammatory drops to relieve foreign-body sensation and redness Regular checkups to continuously monitor progression and any corneal involvement

Advanced stage

Considering surgery to protect vision

When the pterygium keeps growing toward the visual axis (pupil) When tissue distortion causes irregular astigmatism or reduced vision When recurring redness and irritation disrupt daily life Precise lesion removal → conjunctival autograft → lower recurrence → thorough aftercare