Measures of Visual Acuity

Visual acuity generally is measured using eye charts that assess an individual’s ability to see letters, numbers or other shapes at a distance. The most common eye chart used in doctors’ offices to measure distance visual acuity is the Snellen chart, a series of letters or letters and numbers with the largest at the top. The Rosenbaum PocketVision Screener is used to measure near visual acuity.