## Distance Vision Test

This test, also known as the Visual Acuity Test, tests the sharpness of vision by grading the ability of the eye to discern diminishing sizes of alphabets, numbers or shapes at a specified distance of 6 metres.

Instructions:

• Click “Start Test” and a testing chart will be loaded. Measure the height of the biggest number (i.e. 5) in centimeters.
• Multiply the height by 0.72. (example: if the height of the biggest no. 5 is 4.2cm, take 4.2 x 0.72 = 3.02 meters. This means you should stand 3 meters away when testing your vision.
• Stand at the calculated distance from the monitor and read down to the smallest row of numbers that you can see.
• Test one eye at a time, first without your glasses and then with. Keep your other eye covered using an eye patch. To make a simple eye patch, just fold a piece of tissue paper, and tape it over your eye.
• Your visual acuity is given as a fraction (i.e. 6/60, 6/36, 6/24, 6/18, 6/12, 6/9, 6/6, or 6/5) designated to the smallest row of numbers you can read correctly.
• First test your right eye, then your left eye. Record your visual acuity without (unaided visual acuity) and with your glasses (aided visual acuity).

## Interpreting The Results

Normal good visual acuity is 6/6. If your visual acuity is worse than 6/6, move on to the next test, the Pin Hole Test. The Pin Hole Test will determine whether you need to wear corrective glasses to see better.