Ace the Certified Ophthalmic Assistant Exam 2026 – Eye-Opener Prep for Your Bright Future!

Question: 1 / 400

What does the numerator represent in the 20/20 visual acuity notation?

Distance from patient's eyes to the chart

In the 20/20 visual acuity notation, the numerator represents the distance from which the test is conducted, typically 20 feet, to the eye chart. This measurement is crucial because it establishes a standard against which a patient's visual acuity is compared. A result of 20/20 indicates that the individual can see at 20 feet what a person with normal vision can also see at that distance.

This notation is widely used to assess visual clarity, and understanding the numerator helps in interpreting the results effectively. The distance is a critical factor because visual acuity can vary significantly based on how far away a patient is from the chart. In clinical practice, knowing this allows for a proper evaluation of a patient's vision and aids in diagnosing potential vision issues.

Get further explanation with Examzify DeepDiveBeta

Size of the letters on the chart

Degree of visual angle

Patient's age at the time of testing

Next Question

Report this question

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy