How Do We Test for Glaucoma? Understanding Your Eye Exam
Glaucoma is a common eye condition that can lead to vision loss if it goes undetected. In its early stages, it usually does not cause any noticeable symptoms, which is why many people are unaware they have it. Regular eye exams are essential for catching glaucoma early, when treatment is most effective.
Because glaucoma is a complex condition, no single test can diagnose it. Your eye doctor uses a combination of tests to evaluate your eye health and look for early signs of damage.
Key Tests Used to Detect Glaucoma:
• Eye Pressure Check
This quick and painless test measures the pressure inside your eye. While elevated pressure is a major risk factor, it does not always mean you have glaucoma—and normal pressure does not rule it out.
• Pachymetry (Corneal Thickness Measurement)
This test measures the thickness of your cornea. Corneal thickness can affect eye pressure readings and also plays a role in assessing your overall risk for glaucoma.
• Gonioscopy
This test allows your doctor to examine the drainage angle of your eye—the area where fluid drains out. It helps determine the type of glaucoma and guides treatment decisions.
• Visual Field Test
This test checks your peripheral (side) vision. Glaucoma often affects side vision first, and this test helps detect early changes and monitor for progression over time.
• OCT Nerve Imaging
Optical Coherence Tomography (OCT) provides detailed images of the optic nerve. It can detect early damage or thinning of the nerve, sometimes before any vision loss is noticeable.
• Dilated Eye Exam
Using special drops to dilate your pupils allows your doctor to closely examine the optic nerve and retina for any signs of damage.
Why These Tests Matter
Each test provides a different piece of information. When combined, they give your eye doctor a complete picture of your eye health. This is why regular, comprehensive exams are essential—not just a quick pressure check.
Protecting Your Vision
Since glaucoma often has no early warning signs, routine eye exams are the best way to catch it early. With early detection and proper management, vision loss from glaucoma can often be slowed or prevented.
Book Your Appointment Today
Early detection through a professional eye exam is the best defense against glaucoma and permanent nerve damage. Book your appointment today for personalized care and expert consultation from the leading optical specialists in Kew Gardens, NY.