Eye chart smaller towards the bottom of the chart. The person removes any glasses or contact lenses, and stands or sits a standardized distance from the chart (e.g., 20 feet for the Snellen chart). The person is then asked to identify the optotypes on the chart, starting with large rows and continuing to smaller rows until the optotypes cannot be reliably identified any more. The row in which the person can reliably identify symbols defines the visual acuity. One eye is tested at a time. Practically, this is accomplished by covering the other eye with a hand, piece of paper, or a
Sight word Sight word Sight words, often also called high frequency sight words, are commonly used words that young children are encouraged to memorize as a whole by sight, so that they can automatically recognize these words in print within three seconds without having to use any strategies to decode. Sight words don’t follow the standards rules of phonics or the six syllable types. The term sight words is often confused with sight vocabulary, which is defined as each person's own vocabulary that the person recognizes from memory without the need to decode for understanding. Sight words were introduced after Whole language