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
Name-letter effect in preference between subjects would have to be based on whether the letter occurred in their name. For example, take the fictitious pair Irma Maes and Jef Jacobs as shown in the table. The first stimulus is A and U: the last letter of Irma's first name and a letter not in her name. The next stimulus is M and D: the penultimate letter from Irma's first name and a letter not part of her name. As can be seen in the table this is repeated for the remaining letters of Irma's first name. The letters of her last name