Glaucoma Tests Test
Glaucoma tests check for eye diseases that can damage the optic nerve and cause vision loss. They help find the disease early so treatment can protect your eyesight.
What this test measures
Glaucoma tests measure the pressure inside your eyes and check the health of your optic nerve. They help detect glaucoma, a group of eye diseases that can damage the nerve connecting your eyes to your brain.
What your results mean
Reference ranges vary by laboratory and by your age and sex. MedlinePlus does not publish a single normal range for this test — always read your result against the range printed on your own lab report and discuss it with your provider.
Higher-than-normal results
If your test results aren't normal, you may have glaucoma or a high risk for developing glaucoma.
Frequently asked questions
What are glaucoma tests?
Glaucoma tests are eye tests that help diagnose glaucoma, a group of eye diseases that can damage the optic nerve and cause vision loss.
Why are glaucoma tests important?
They can help find the disease before you know you have it, so you can start treatment to protect your eyes against serious vision loss.
What does high eye pressure mean?
High fluid pressure in one or both eyes increases your risk for glaucoma. If the drainage system becomes clogged, fluid backs up and raises pressure, which may damage the optic nerve.
What are the main types of glaucoma?
The main types are open-angle glaucoma (most common, slow clogging of drainage) and closed-angle glaucoma (canal is covered by the iris, can be acute or chronic).
What happens if my test results are not normal?
You may have glaucoma or a high risk for developing it. Your eye care specialist will recommend treatments such as medicines, eye surgery, or laser therapy to prevent more vision loss.
Related lab tests
Sources
- MedlinePlus: Glaucoma Tests — NIH MedlinePlus
Last updated . Information is aggregated from official public sources and is not a substitute for professional medical care.