Protect eyes from extreme sunlight and glare of bright light , and from the dust and husk . While reading, keep the reading material at a distance of about 25-30 cm from the eyes. Raise your eyes from time to time while reading, watching TV etc. Do not watch television for long hours, particularly in a completely dark room. Do not read in dim light , in a moving bus or while lying down .this puts strain on the eyes.Wash your eyes by splashing clean cold water whenever you feel eyes are strained or tired