Can I have glaucoma with normal eye pressure?

Yes. Some people develop optic nerve damage even when pressure is in the normal range. The nerve exam and side vision test still matter.

Will I go blind from open-angle glaucoma?

Most treated people do not go blind. The biggest risks are late diagnosis, missed follow-up, and not using treatment.

Are glaucoma drops lifelong?

Often, yes. Some people can reduce drops after laser or surgery, but glaucoma still needs long-term monitoring.

Does open-angle glaucoma hurt?

Usually no. Pain, halos with nausea, or sudden vision loss suggests another problem and needs urgent care.

Condition

Open-Angle Glaucoma

Also known as Primary Open-Angle Glaucoma, Chronic Open-Angle Glaucoma, POAG, Normal-Tension Glaucoma, Silent Glaucoma

Updated May 16, 2026·For educational purposes only. Not a substitute for medical advice. See our terms.

Bottom Line

Open-angle glaucoma slowly damages the optic nerve, usually without pain or early symptoms. Lowering eye pressure can slow the disease and protect the vision you still have.

Open-angle glaucoma is the most common type of glaucoma. The eye is always making a clear fluid, which drains out through a spot called the drainage angle. In open-angle glaucoma that drain looks open, but the fluid still leaves too slowly. Pressure builds up and can damage the optic nerve ¹.

Most people have no symptoms at first. Side vision can shrink slowly, so the brain fills in missing areas until damage is advanced ².

There is no cure today, but treatment helps. Lowering eye pressure with drops, laser, or surgery slows glaucoma progression in major trials ³.

How It Is Diagnosed

An eye doctor checks more than one thing:

Eye pressure. Higher pressure raises risk, but normal pressure does not rule it out.
Optic nerve exam. The doctor looks for cupping and rim thinning.
Side vision test. This finds blind spots you may not notice.
Nerve scan. Imaging can measure nerve fiber thinning.
Drainage angle exam. This confirms the angle is open.

Glaucoma diagnosis uses pressure, optic nerve findings, and visual field testing together ¹.

Treatment

Treatment lowers eye pressure to protect the optic nerve. Options include:

Eye drops. Drops lower fluid production or improve drainage.
Laser trabeculoplasty. A laser helps the drainage tissue work better.
Minimally invasive surgery. Small devices may help during cataract surgery.
Trabeculectomy or tube surgery. These are used when pressure needs stronger lowering.

Pressure-lowering treatment slows open-angle glaucoma progression, but it does not bring back lost vision ³.

Living With Glaucoma

Small habits protect vision:

Use drops on schedule. A phone alarm can help.
Bring drops to visits. The doctor can check technique.
Know your numbers. Ask about eye pressure, target pressure, and visual field results.
Do not stop drops suddenly. Ask before changing any glaucoma medicine.
Tell family members. Close relatives may need earlier eye exams.

Long-term follow-up matters because open-angle glaucoma can worsen without symptoms ¹.

Common Questions About Open-Angle Glaucoma

No. Treatment can slow or stop more damage, but vision already lost from glaucoma usually cannot return.

Next Steps

1Book a full dilated eye exam if you have glaucoma risk factors.
2Ask for your eye pressure, target pressure, and optic nerve findings.
3Use glaucoma drops at the same time every day if prescribed.
4Tell close relatives if you are diagnosed with glaucoma.
5Go to the emergency room for sudden vision loss, severe eye pain, or halos with nausea.

Find specialists for Open-Angle Glaucoma

Board-certified ophthalmologists who treat Open-Angle Glaucoma.

Browse Glaucoma specialists

Also relevant

Comprehensive