Condition library
Glaucoma and eye pressure
Conditions linked to optic nerve damage from raised eye pressure or other glaucoma mechanisms.
Medical reviewer Mr Mohamed Mohyudin, Consultant Ophthalmic SurgeonSite-wide clinical review
About this review
Mr Mohyudin completed a clinical review of the site’s medical content on the date shown. This page has been edited since then; a separate sign-off for this exact version has not yet been recorded, so we do not claim one.
Glaucoma: compared at a glance
Summaries only — follow each link for symptoms, causes, treatment and when to get urgent help.
| Condition | Part of the eye | In brief |
|---|---|---|
| Glaucoma | Optic nerve and drainage angle | Optic nerve damage often linked to eye pressure; the common type is silent until side vision is lost — regular tests are essential. |
| Ocular hypertension | Drainage angle | Higher-than-normal eye pressure without glaucoma damage; monitored to protect sight. |
Frequently asked questions
Can glaucoma happen without symptoms?
Often yes. Chronic glaucoma may steal side vision gradually without pain. Regular pressure checks and optic nerve assessment help find it early.
Is glaucoma only about high eye pressure?
Pressure is a major risk factor, but some people develop glaucoma with apparently normal pressure. Optic nerve appearance and visual field tests guide diagnosis.
What are the symptoms of acute glaucoma?
Severe eye pain, headache, blurred vision, halos around lights, nausea and a red eye can signal acute angle-closure glaucoma — seek emergency care immediately.