The first thing it touches is a thin veil of tears on the surface of the eye. Behind this is your eye’s front window, the cornea. This clear layer helps focus the light.
On the other side is a liquid called aqueous humor. It circulates throughout the front part of your eye and keeps the pressure inside constant.
After the aqueous humor, light passes through the pupil. This is the central round opening in your iris, the colored part of your eye. It changes size to control how much light gets in further back.
1- Symptoms you can feel. Examples include pain, irritation or eye tiredness or strain.
2- Changes in eye functions. Examples include watery eyes (epiphora) and trouble controlling how you blink your eyes.
3- Changes in the appearance of your eyes. These changes include yellowing of the white of your eyes (scleral icterus), red eyes and pupils that are too narrow (miosis).
4- Changes in eye movement or alignment. Examples include exotropia or esotropia.
5- Changes in how you see. Some common examples are double vision (diplopia), blurred vision or tunnel vision.
1- Medications.
2- Make proper nutrition a priority. Your eyes need specific vitamins and minerals to do their best.