Dry Eye Syndrome

Abstract

Use of video display terminals (VDTs) is associated with a decreased jkequency of blinking and an increased rate of tear evaporation. This leads to ocular fatigue (I), which is one of the major symptoms of dry eye (2). The causes or alterationsin the nonnal tearfllm that lead to dry eye syndrome or keratoconjunctivitis sicca are given here, followed by a brief account of the diagnostic measures. Various compounds and dosage forms that are in use and emerging for the treatment of dry eye are described. 6.5-7.6. The turnover of tears is heavily dependent on environmental conditions, such as temperature, relative humidity, and wind as well as age and the physiological state of the patient (7). The cul-de-sac normally holds 7-9 pL of tears but 465