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 Humane Letters of Osteopathic Medicine, Doctor of Podiatric Medicine, Juris Doctor, Doctor of Optometry etc. Doctor of Humane Letters The degree of Doctor of Humane Letters (; D.H.L.; or L.H.D.) is almost always conferred as an honorary degree, usually to those students who have distinguished themselves in areas other than science, government, literature or religion, which are awarded degrees of Doctor of Science, Doctor of Law, Doctor of Letters, or Doctor of Divinity, respectively. Doctor of Humane Letters degrees should not be confused with earned academic degrees awarded on the basis of research, such as Doctor of Philosophy, Doctor of Science or