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S. Hincapie-Hincapie, J. Merayo-Lloves, E. Garcia-Navarra; Does PRK Increase the Risk of Computer Vision Syndrome?. Invest. Ophthalmol. Vis. Sci. 2008;49(13):3349.
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To perform outcome analysis of patients that underwent Photorefractive keratotomy (PRK) for myopia from a cohort of professional users of visual display terminal (VDT).Material and
Retrospective case series study. Eight hundred professional workers on VDT of the same company, were explored by a compressive ophthalmological protocol that includes a psychometric questionnaire. The questionnaire includes 18 questions scaled from 1 (no symptoms) to 5 (very severe symptoms) with a total score of 90 points. For the present study, 13 patients with myopia that elected PRK for correction more than ten years ago were included. Also, another 13 patients matching age and dioptres were random selected for comparison.
Mean age was 40 years old, 70% male and best corrected visual acuity of 20/30. Patients that underwent PRK have a mean uncorrected visual acuity of 20/40 with a mean spherical equivalent of -0.75D. Psychometric questionnaire showed a mean of 20.35 (SD 2.23) in the group corrected with glasses and increase to 26.40 (SD 2.4) in the group operated with PRK
Myopic patients that underwent PRK with ten years follow up complain of visual display terminal more than the group of patient not operated
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