It arises from a lack of tears causing damage to the ocular surface or from the irregularity of the tear film due to excessive evaporation. In dry eye, there is either a problem in the production of tears or excessive evaporation of the tears.
It is due to the problem of tear quality.
Itching
Combustion
Irritation
Redness
Overexertion
Increased discomfort after reading, watching TV, or working at the computer