High Eye Pressure and Glaucoma Suspect

Ocular hypertension means the pressure inside your eye is higher than normal, but there is no damage to the optic nerve yet. It causes no symptoms. It matters because high pressure is the biggest treatable risk factor for glaucoma.

A “glaucoma suspect” is someone whose exam shows features that could be early glaucoma, such as high pressure, an optic nerve that looks suspicious, or a strong family history, without proof of damage yet. Dr. Philip Ngai, a fellowship trained glaucoma specialist, sees many patients in this group.

Why it is watched before damage appears

Glaucoma damage is permanent, so the goal is to catch the change early. In the large Ocular Hypertension Treatment Study, about 9.5 percent of untreated people with high pressure developed glaucoma within five years, compared with about 4.4 percent of those whose pressure was lowered with eye drops. Not everyone with high pressure needs treatment, but everyone needs monitoring.

What we measure

• Eye pressure at different visits and times of day
• Corneal thickness, since thin corneas raise risk and affect pressure readings
• OCT imaging of the optic nerve and nerve fiber layer to detect thinning before vision is affected
• Visual field testing to map your side vision
• Gonioscopy to check whether the eye’s drainage angle is open or narrow

Treatment options

If your risk is high, we may recommend eye drops or an in office laser to lower pressure. If your risk is lower, we monitor closely, usually every 6 to 12 months. Learn more about glaucoma care and MIGS.

Common questions

Will I go blind if I have high eye pressure?

Most people with high eye pressure never lose vision, especially with regular monitoring. The purpose of follow up is to find the few who develop glaucoma early, while treatment can still protect their sight.

Can I feel high eye pressure?

Usually not. The common form of high pressure has no symptoms. A sudden painful red eye with blurred vision and headache is different and needs care the same day.

Can lifestyle lower eye pressure?

Regular exercise may help a little, but it does not replace treatment when treatment is needed. Tell us about steroid use, including inhalers, creams and pills, since steroids can raise eye pressure.