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Comparison of tests of accommodation for computer users
David Kolker1, Robert Hutchinson, Erik Nilsen
1Lewis and Clark College, Portland Oregon, USA. dkolker@swbell.net
Optometry (St. Louis, Mo.)
|October 9, 2002
Summary
Computer Vision Syndrome is common, with accommodative disorders frequently found. Testing accommodation is crucial for symptomatic individuals, yielding varied results in prepresbyopic patients.
Area of Science:
- Optometry
- Ophthalmology
- Vision Science
Background:
- Increased computer use leads to more Computer Vision Syndrome (CVS) cases.
- Accommodative disorders are the most common visual finding in CVS patients.
- Accurate assessment of the visual system is vital for effective CVS treatment.
Purpose of the Study:
- To compare the results of nearpoint accommodation tests in prepresbyopic and presbyopic individuals.
- To determine the most effective methods for assessing visual function in patients experiencing CVS.
Main Methods:
- Two groups (prepresbyopic and presbyopic, N=30 each) were selected from a private practice.
- Participants underwent comprehensive vision and ocular health examinations.
- Nearpoint accommodation tests were administered at a computer working distance.
Main Results:
- Nearpoint accommodation tests showed consistent results within the presbyopic group.
- Prepresbyopic individuals exhibited significantly different results across various accommodation tests.
- The choice of testing method and stimulus impacts accommodation assessment in prepresbyopes.
Conclusions:
- Optometrists must evaluate the accommodative system, alongside binocular and refractive status, for symptomatic VDT users.
- Accommodation testing protocols significantly influence outcomes in prepresbyopic patients.
- The Gaussian image test is often preferred by patients for its higher plus prescription outcome.