Home vision tests

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Visual acuity test

Home vision tests measure the ability to see fine detail.

Visual acuity test - home; Amsler grid test

There are three vision tests that can be done at home: Amsler grid, distance vision, and near vision testing.

AMSLER GRID TEST:

This test helps detect macular degeneration, a disease that may cause blurred vision, distortion, or blank spots. If you normally wear glasses for reading, wear them for this test. If you wear bifocals, look through the bottom reading portion.

Do the test with each eye separately, first the right and then the left. Hold the test grid right in front of you, 14 inches away from your eye. Look at the dot in the center of the grid, not at the grid pattern.

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While looking at the dot, you will see the rest of the grid in your peripheral vision. All the lines, both vertical and horizontal, should appear straight and unbroken. They should meet at all the crossing points with no missing areas. If any lines appear distorted or broken, note their location on the grid.

DISTANCE VISION:

This is the standard eye chart doctors use, which has been adapted for home use.

The chart is attached to a wall at eye level. Stand 10 feet away from the chart. If you wear glasses or contact lenses for distance vision, wear them for the test.

Check each eye separately, first the right and then the left. Keep both eyes open and cover one eye with the palm of the hand.

Read the chart, beginning with the top line and moving down the lines until it is too difficult read the letters. Record the number of the smallest line that you read correctly. Repeat with the other eye.

NEAR VISION:

This is similar to the distance vision test above, but it is held only 14 inches away. If you wear glasses for reading, wear them for the test.

Hold the near vision test card about 14 inches from your eyes. Do not bring the card any closer. Read the chart using each eye separately as described above. Record the size of the smallest line you were able to accurately read.