What is Visual acuity test
The visual acuity test is used to determine the smallest letters you can read on a standardized chart (Snellen chart) or a card held 20 feet away. Special charts are used when testing at distances shorter than 20 feet. One of the tests used for screening of visual acuity is the “E” test.

Visual Acquity Test with E Chart

To perform the test optimally you need to answer some questions regarding your computer display.

Proceed to Astigmatism test.