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Query: UMLS:C0038379 (strabismus)
 9,317 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A collection of programs has been developed on the Macintosh II computer to generate visual tests for an ophthalmological practice. The large number of available colours makes it possible to emulate most of the available tests and also to develop new ones. The system allows testing of the following visual functions: Visual acuity, Stereopsis, Aniseikonia, Phoria, Cyclophoria, Colour Vision and Contrast sensitivity.
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PMID:[Evaluating visual function with visual display graphics on the Macintosh II computer]. 161 66

This paper presents the results of a physiological study in which four methods used to measure cyclophoria were compared. A total of 50 persons without strabismus participated in a series of experiments. Monocular and binocular measurements were made in primary position. It was found that different methods have different means and ranges. Thus, when conducting clinical follow-up examinations, the same method should be used as before. The double-scale Maddox cylinder was found to be a simple and reliable screening method. The mean is close to 0 degrees and the physiologic range varies from 2 degrees incyclophoria to 2 degrees excyclophoria.
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PMID:[Measuring cyclodeviations]. 271 25

The effects of a single intramuscular injection of 2 mg atropine sulphate on visual function were studied in volunteer subjects. The well-known effects of increased heart rate, dryness of the mouth, increased pupil diameter and reduced accommodative range were confirmed. Visual acuity, stereoacuity, red-green colour balance and reaction time to a visual stimulus were unaffected by atropine, while extraocular muscle balance (horizontal heterophoria and cyclophoria) underwent a transient change. There was no significant change in contrast sensitivity measurements to stationary sinusoidal grating patterns of spatial frequencies 1-30 c/deg; however contrast sensitivity to moving grating patterns of spatial frequencies 1-5 c/deg showed a sustained reduction which was still present at 6 h post-injection. It is concluded that atropine adversely affects movement detection but not stationary visual function.
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PMID:The effects of a single intramuscular injection of atropine sulphate on visual performance in man. 355 75