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Measurement of the Angle of Exodeviation With Polarized Glasses in Intermittent Exotropia
- Source :
- American Journal of Ophthalmology. 211:94-97
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- The purpose of this study was to investigate if the angle of deviation with Polarized glasses is effective for measuring maximal angles in patients with intermittent exotropia (IXT).Prospective cross-sectional study.This study was conducted on patients with10 prism diopters (PD) of basic-type IXT at distance and near. Three consecutive, different methods for measurement of the angle of deviation were used: alternate prism cover test (ACT), ACT with Polarized glasses (Polaroid test), and ACT after 1 hour of monocular occlusion (occlusion test). Comparison of the 3 methods of measurement was conducted using the Friedman repeated ANOVA and Wilcoxon signed rank test.A total of 60 patients were included in this study. Thirty (50%) patients were male. Mean age was 8.7 ± 5.1 years (range, 4-37 years) and measurements by ACT at distance and near were 25.2 ± 8.0 PD and 25.4 ± 8.2 PD, respectively. Angles of Polaroid and occlusion tests (29.0 ± 8.6 PD vs 30.6 ± 8.1 PD) were significantly increased compared to that of ACT at distance (P.01), and there was no significant change between angles of Polaroid and occlusion tests at distance (P = .06). However, there was no significant change between angles of ACT and Polaroid tests (25.4 ± 8.2 PD vs 26.9 ± 8.1 PD) at near (P = .07).The angle of deviation with Polarized glasses at distance increased and was comparable to that after the monocular occlusion test. The angle of exodeviation with Polarized glasses may be an easy, simple and effective alternative to measurement of maximum angle of deviation in IXT.
- Subjects :
- Adult
Male
Optics and Photonics
Materials science
Adolescent
Wilcoxon signed-rank test
Young Adult
03 medical and health sciences
0302 clinical medicine
Occlusion
Prism diopters
Humans
In patient
Prospective Studies
Child
Prism cover test
030304 developmental biology
Monocular occlusion
0303 health sciences
business.industry
Ophthalmology
Cross-Sectional Studies
Eyeglasses
Oculomotor Muscles
Child, Preschool
030221 ophthalmology & optometry
Exotropia
Female
Minimum deviation
Therapeutic Occlusion
Nuclear medicine
business
Intermittent exotropia
Subjects
Details
- ISSN :
- 00029394
- Volume :
- 211
- Database :
- OpenAIRE
- Journal :
- American Journal of Ophthalmology
- Accession number :
- edsair.doi.dedup.....42ae39625157a5569534ac147f4353c5