The Amsler grid is a useful home test for early detection of retinal changes. Early detection of retinal changes is vital to prevent needless vision loss in conditions such as macular degeneration, histoplasmosis, central serous chorioretinopathy, choroidal neovascular membrane, and diabetic retinopathy. In most cases the Amsler grid should be used to check the vision each day.

If changes are noted in the vision after performing this test, your retinal specialist should be contacted immediately.

Instructions for Amsler Grid Testing

1. Wear your reading glasses
2. Hold the Amsler grid at normal reading distance
3. Cover one eye
4. Look at the dot in the center of the grid
5. While looking at the dot, note how the lines and squares appear
6. Test the other eye in the same manner

Results and What to Do?

	All of the lines should appear straight and the squares should appear uniform in size
	If you note any changes in the appearance of the grid, such as distortion, blurring, discoloration, dark or missing areas of the grid, or any other changes, call and see your eye doctor immediately. Do not wait to see if the changes will clear on their own. Timely treatment is vital to safeguarding your vision

For a printable version of the Amsler grid test in PDF format, click here