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
Cave of Letters but the faces of the various pagan gods and creatures were defaced (see Aniconism in Judaism). A tied bundle of documents, the Bar-Kokhba letters, was found in a waterskin, next to what were apparently a woman's belongings: wool, cosmetic tools, beads, a perfume flask and a mirror. Of fifteen letters, most were written in Aramaic and Hebrew, and two in Greek. Most were addressed from the leader (but not in one handwriting) to his subordinates Yehonathan and Masabala, who sat at En-Gedi. Yadin theorized Yehonathan and Masabala finally carried their cache to the cave. A letter consisting of four slats