Glaucoma Risk Calculator | Inland Glaucoma Center, Upland CA

This is an educational screening tool, not a medical diagnosis. It estimates your general risk profile based on factors used in published glaucoma risk research (including the Ocular Hypertension Treatment Study). Only a comprehensive eye exam with a glaucoma specialist can diagnose or rule out glaucoma. Everyone benefits from professional screening regardless of their result below.

Age

Family History of Glaucoma A parent or sibling with glaucoma roughly doubles your own risk.

None known One relative Parent and/or sibling

Race / Ethnicity These are well-established epidemiological risk factors in glaucoma research — not a judgment about your individual health.

Known Eye Pressure (IOP), if you've had it measured In mmHg — leave blank if unknown

Central Corneal Thickness, if known In microns, from a prior pachymetry test — leave blank if unknown. Thinner corneas (below ~555 microns) carry higher risk.

Cup-to-Disc Ratio, if known From a prior eye exam, 0 to 1 — leave blank if unknown

Diabetes

No Yes

Nearsighted or Farsighted? High myopia raises open-angle/pigment dispersion risk; hyperopia raises narrow-angle risk.

History of Significant Eye Injury

No Yes

Long-Term Steroid Use Eye drops, oral, inhaled, nasal, or skin steroids

No Yes

Migraine, Poor Circulation, or Low Blood Pressure

No Yes

Sleep Apnea

No Yes

We don't collect, store, or transmit your answers anywhere — this calculation runs entirely in your browser.

Schedule Your Appointment Call 909-315-6891

How This Calculator Works

This tool uses risk factors drawn from published glaucoma research — most notably the Ocular Hypertension Treatment Study (OHTS), which identified age, eye pressure, corneal thickness, and cup-to-disc ratio as key predictors, alongside well-established factors like family history, race/ethnicity, diabetes, refractive error, trauma history, steroid use, and vascular risk factors relevant to normal-tension glaucoma. It produces a general risk category, not a percentage or diagnosis — glaucoma can only be confirmed or ruled out through a comprehensive in-person eye exam including dilated optic nerve evaluation, OCT imaging, and visual field testing.

Frequently Asked Questions

Is this calculator a substitute for an eye exam?

No. This tool is for education and awareness only. Glaucoma can only be diagnosed or ruled out through a comprehensive in-person eye exam, including dilated optic nerve evaluation, OCT imaging, and visual field testing.

What factors does this calculator use?

It draws on well-established glaucoma risk factors from published research, including age, family history, race/ethnicity, eye pressure, corneal thickness, cup-to-disc ratio, diabetes, refractive error, eye trauma history, steroid use, and vascular risk factors.

Do you store my answers?

No. The calculation runs entirely in your web browser. We don't collect, store, or transmit any of your answers.

I got a 'lower risk' result. Do I still need an eye exam?

Yes. Glaucoma is often completely symptom-free until significant vision loss has occurred, so routine screening is recommended for everyone starting at age 40, regardless of calculated risk category.

See a glaucoma specialist. Dr. Robert Gunzenhauser is Harvard-educated and UCLA fellowship-trained in glaucoma, providing expert diagnosis and treatment for Glaucoma Risk Calculator at Inland Glaucoma Center in Upland, CA.

Schedule Your Appointment Call 909-315-6891