What is Visual Acuity?

By editor
February 2, 2010

Visual Acuity is a measure of how well a person sees. It is expressed as a fraction (e.g. 20/20) where the numerator is the testing distance and the denominator is the distance at which a person with normal eyesight can read the letters on the chart. For example, if the smallest letters that the person being tested can see are on the "20/40" line, it means a person with normal eyesight can see these same letters at a testing distance of 40 feet. For further information or to book a contact lens appointment with one of our doctors please call any of our three Rochester, NY Cornerstone Eye Associates locations in Gates (585-328-0153), Brighton (585-244-2200) or Irondequoit (585-266-7880).

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Brighton Office
160 Sawgrass Dr., Suite 220
Rochester, NY 14620
585.244.2200
 
Gates Office
2300 Buffalo Rd., Bldg. 700
Rochester, NY 14624
585.328.0153
 
Irondequoit Office
485 Titus Ave.,
Rochester, NY 14617
585.266.7880