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
Four Letter Word (Beady Eye song) Four Letter Word (Beady Eye song) "Four Letter Word" is a single by English band Beady Eye, released on Beady Eye Records as "BEADY3". The track is also featured on their 2011 debut album "Different Gear, Still Speeding" as the opening track. The video for the song was premièred exclusively for NME and also on the band's official website on 26 December 2010, at the same time a limited edition 7" vinyl was released on 17 January 2011 on 7" vinyl backed with new track "World Outside My Room". All songs written by Liam Gallagher, Gem Archer, and Andy Bell.