Amsler Grid Self Test

Take the Amsler Grid Self-Test

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1. If you wear glasses, wear them for the test.
2. Cover one eye.
3. Hold the grid about 10 inches away from the eye you are testing.
4. Look at the center dot keeping your eye focused on it at all times.
5. While looking directly at the center, and only the center, be sure that all the lines are straight and all the small squares are the same size.
6. If you should notice any area on the grid that becomes distorted, blurred, discolored, or otherwise abnormal, have your eyes thoroughly examined right away.
7. Test each eye separately.

A few facts to consider:

• Over 2.5 million Americans are blind.
• The leading causes of blindness and permanent vision loss are: Macular degeneration, cataracts, glaucoma, and diabetic retinopathy
• 40% to 50% of diabetics will develop diabetic retinopathy.
• Diabetic retinopathy often shows no symptoms until it is too late.
• Macular degeneration is the number one cause of central vision loss.
• Floaters and flashers may indicate serious eye disease.
• Half of all cases of blindness could have been prevented through early detection.
• Regular eye exams, including examination of the back of the eye through dilated pupils, are the best defense.

Frequently Asked Questions

1. What is the Amsler grid used for?

   The Amsler grid is a simple at-home screening tool to check your central vision for distortions, blurry spots, or missing areas that can occur with macular conditions such as age-related macular degeneration or diabetic retinopathy. It does not replace a comprehensive eye exam.

2. How do I use the Amsler grid correctly?

   Wear your reading glasses if you use them. Cover one eye and hold the grid about 10 inches from your face in good light. Focus on the center dot and note whether the lines look straight and the squares look even. Mark any wavy, blurred, dark, or missing areas. Repeat with the other eye.

3. What does it mean if lines look wavy or areas are missing?

   Distortion or missing areas can indicate changes in the macula. This can be associated with conditions like macular degeneration, macular edema, or other retinal problems. If you notice any new changes, contact Teton Retinal Institute promptly for a comprehensive dilated eye exam.

4. How often should I check my vision with the Amsler grid?

   If you are at risk for macular disease or have been advised by your eye doctor, check each eye separately several times per week. Record what you see and report any new distortions or blank spots immediately. Routine professional eye exams are still essential.

5. Should I use glasses when taking the test?

   Yes. Use your reading glasses or the prescription you typically use for near work. Testing with the correct near vision helps reveal subtle central vision changes more accurately.

6. Can the Amsler grid diagnose eye disease?

   No. The Amsler grid is a screening tool only. It can alert you to possible changes, but a diagnosis requires a comprehensive eye exam with specialized testing such as OCT imaging and a dilated retinal evaluation.

7. What should I do if my test looks abnormal?

   Stop the test, cover the other eye to compare, and note what you see. Save your marked grid and contact Teton Retinal Institute right away to schedule a prompt evaluation. Early diagnosis and treatment can help protect your vision.