Measurement of the eye accommodation range in young people with different daily habits

Abstract

To evaluate and measure the dioptric eye accommodation range in young people with different daily habits and especially into two groups, those who use computers for about 8 hours per day and those who do not use computers at all or use them for less than 2 hours per day. The purpose of this study was to see if there is a difference in eye accommodation range between these two populations. Method and materials: The eye accommodation range was measured in the right eye of 200 young people whose ages were from 20 to 23 years. The average age of individuals was 21.5 years. Basic requirement was that the first 100 were daily users of computers (students from the Department of Informatics, T.E.I. of Athens with at least 8 hours daily use of computers) while the remaining 100 have little or no use of computers (students from Department of Optics & Optometry, T.E.I. of Athens). The two clinical techniques used for measuring subjectively eye accommodation range were a) The push-up method b) the minus lenses method. Results: The data showed, that the differences in eye accommodation range between the two populations, was around 0,25 Ds approximately maximum 0,33 Ds corresponding to 2-4% of the total eye accommodation range which is probably within the limits of statistical error. What should also be noted is that in both group populations there was a reduction in the range of eye accommodation about 2.00 Ds from the Donder’s results that may be due to the subjective type of measurements used or other environmental factors