The Snellen test, also known as the visual acuity test or eye test, is a common exam used to measure a person's ability to see objects clearly at various distances. There are several synonyms that can be used to refer to the Snellen test. One such term is the eye chart test, named after the chart used during the exam. Another term is the visual acuity exam, which describes the purpose of the test. The optometrist test is a synonym that specifically refers to the professional administering the exam. Lastly, some people may simply refer to the Snellen test as a vision test or eye exam.