this group will receive patient education program for four weeks.

1. limiting screen time
2. blinking awareness training
3. keeping the home environment cool and moist
4. using artificial tears (Hylo®gel) twice daily
5. contact lens use can preferably be limited,
6. adding omega-3 poly unsaturated fatty acids in the diet or as dietary supplements.

Patients will be sitting in a comfortable chair, with their eyes closed, with cleaned eyelids, and occasionally blinking. Bioptron lamp will be lined at an angle of 90°, at a distance from 5 cm to 10 cm, exposure time will be 5 min. Energy is very low, 1 - 2.4 J/cm without thermal effects, energy density is 40mW. Bioptron light is polychrome, wave frequency is from 400 nm (including blue, visible radiation) up to 2000 nm (representing infrared waves)

patients will receive patient education program and bioptron light therapy for four weeks

The Dry Eye-Related Quality-Of-Life Score questionnaire is a 15-item instrument for assessing subjective dry eye symptoms and their effects on activities of daily living within the previous week.

1. extremely good
2. very good
3. good
4. bad
5. very bad
6. extremely bad

Tear Breakup Time Is the time interval between a complete blink and the appearance of the first break, discontinuity or dry spot observed in the tear film.

The Schirmer test score is determined by the length of the moistened area of the strips (using the scale packaged with the strips) and the duration of the measurement in minutes. A score of greater than 10 mm in 5 minutes is accepted as normal. A score of less than 5 mm in 5 minutes indicates a tear deficiency.