Mutahir Shah, Saif Ullah, Farah Amin, Saad Alam Khan.
Computer Vision Syndrome: Pre and Post Treatment Assessment of Computer Users.
Al-Shifa J Ophthalmol Jan ;14(3):133-40.

Objectives: The objective of the study was to assess ocular problems in individuals associated with computer and visual display unit uses and to assess the effect of therapeutic interventions on computer vision syndrome symptoms among computer users. Materials and Methods: This pre and post Interventional study was conducted among the software houses of Rawalpindi and Islamabad. The total duration of the study was 6 months. A sample of 338 was calculated. All the study subjects were randomly recruited from the selected Software houses. Results: The results of the study showed that out of 338 about 70.4% had headache, 50.9% have tired eyes, 33.1% have blurred near vision, 23.1% have blurred distance vision, 29.9% have glare problem, 45.9% have dry eyes, 57.4% have Itchy and Burning eyes, 40.8% have Red eyes, 26.3% have Lower back pain, 68.3% have Neck and Shoulder pain and 12.1% complained of Diplopia while working on VDUs. Pearson Chi Square test shows a highly significant results regarding reduction in symptoms with the use of Anti Reflective coating and UV coated lenses (p value <0.05). Pearson Chi Square test also revealed a high and statistically significant association between, reduction of symptoms and working hours on computer use (p value <0.05). There was a statistically significant increase in Post Tear Break up Time after intervention has been given to the patients from time 1(M=7.69, N=338 and SD3.274) to time 2 (M=9.24, SD=2.845, N=338), t =-17.048 with a p value of < .000 (two tailed).The mean increase observed were ranging from -1.732 to 1.374 with CI (Confidence Interval) at 95%. Conclusion: The conclusion of the above study was that CVS related symptoms related to VDUs use can be prevented or reduced, by simply prescribing antiglare glasses with UV coatings and by providing the significant lubrication to ocular surface along with environmental modifications.

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