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Computer eye strain: incidence and symptomatology

Poster Details

First Author: V.Konidaris GREECE

Co Author(s):    E. Kanonidou   C. Kanonidou   L. Papazisis        

Abstract Details


To evaluate the incidence of eye strain in computer users.


: Department of Ophthalmology, General Hospital of Veria, Veria, Greece.


163 subjects (66 men and 97 women) participated in the study. The average age was 45 years (SD 7.68). The participants were employees at the Hospital and reported daily use of computer for a period of not less than 4 hours a day. The presence of symptoms of ocular surface disease was assessed using a questionnaire completed by the participants. The questions concerned the occurrence of complaints during the previous week.


All the participants reported eye strain related to computer use. 23% of the participants reported light sensitivity, 57% foreign body sensation, 9% pain, 73% blurred vision, 3% poor vision, 5% difficulty in reading, 7% difficulty driving at night, 51% difficulty working on a computer. No one reported problems when watching TV. 9% reported problems in foggy weather, 31% in areas with low humidity (very dry) and 43% in air-conditioned areas.


These symptoms are probably related to the instability of the tear film and poor convergence and adaptation that have been reported in computer users in prolonged near-distance work.

Financial Disclosure:


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