Glaucoma: open-angle, angle-closure, diagnosis, treatment
Ophthalmology · MBBS
Study notes
A 60-year-old bumps into doorframes — tunnel vision from chronic open-angle glaucoma. Open-angle (trabecular meshwork resistance — painless, peripheral field lost first — patients notice late): drops (latanoprost — prostaglandin, timolol — beta-blocker) lower IOP; laser/surgery (trabeculectomy) if uncontrolled. Angle-closure (iris blocks drainage — acute: severe pain, red eye, halos, vomiting, rock-hard eye — IV mannitol + pilocarpine then laser iridotomy): emergency — hours matter. Glaucoma damage is irreversible — screening (IOP + disc + fields after 40) catches the silent thief.