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
Doctor of Letters French universities. Before the 1950s, the now-abolished "Doctorat d'État" degree was called "Doctorat ès lettres" (in France, "letters" is equivalent to "humanities"). The highest educational attainment at Sanskrit Colleges in India is the "Vidya Vachaspati", legally recognized as the equivalent to the Western D.Litt. Enrollment in a "Vidya Vachaspati" program generally requires both having published works and the previous attainment of a "Vidya Vairidhi" degree, equivalent to a PhD. Doctor of Letters Doctor of Letters (D.Litt., Litt.D., D. Lit., or Lit. D.; Latin ' or ') is an academic degree, a higher doctorate which, in some countries, may be considered