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
Unite For Sight Unite For Sight Unite for Sight is a 501(c)(3) non-profit organization founded in 2000 by Jennifer Staple-Clark specializing in healthcare delivery to communities around the world. The organization invests human and financial resources in local eye clinics in Ghana, Honduras, and India to eliminate patient barriers to care. As of January 2017, Unite for Sight has assisted more than 2.4 million people worldwide and provided over 97,000 vision-restoring surgeries. The Global Impact Corps is a volunteer abroad program that places students and professionals with Unite For Sight’s local eye clinic partners. After completing global health training, Global Impact Fellows travel