Special Education
Glossary

Snellen Chart

 

defined: 

The most common visual screening test; it consists of eight rows of letters, each row smaller in size than the previous one; the person being tested is asked to read the letters with each eye while the other eye is covered. Each row represents the distance at which a person with normal vision can see the letters.

explained:  
video:
illustration:  
related terms:
related links: Harvard Medical School Family Health Guide

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