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Journal of the Korean Ophthalmological Society ; : 685-691, 2019.
Artigo em Coreano | WPRIM | ID: wpr-766878

RESUMO

PURPOSE: To measure and analyze ocular deviations between dominant and non-dominant eyes using video-oculography (VOG) in intermittent exotropia. METHODS: Fourteen subjects who were diagnosed with intermittent exotropia from July 2017 to July 2018 with age of 5 or more, visual acuity of 20/30 or better and corrected visual acuity of 20/25 or more and difference in vision of both eyes of 1 line or less on Snellen optotype were included. The subjects were asked to fixate on a black-on-white optotype at 1 m, which subtended a visual angle of 50 minutes of arc. The video files and data about ocular deviations were obtained using VOG with alternate cover test. We analyzed angles of ocular deviations in dominant and non-dominant eyes. RESULTS: Among the 14 subjects in this study, the mean age were 7.6 ± 1.7 (range 5–9 years). Seven of 14 subjects had the right eye dominance. Six of the 14 subjects were men. There was no significant difference of ocular deviations between the dominant and non-dominant eyes in VOG (p = 0.167). Additionally, there was no significant difference of the values of VOG when one eye was exodeviated or re-fixated (p = 0.244), when both eyes were deviated, and when both eyes were re-fixated (p = 0.195, 0.637). CONCLUSIONS: In this study, there was no significant difference of ocular deviations between the dominant and non-dominant eyes, between when an eye was exodeviated or fixated using VOG. Therefore, it may not be a problem even if alternate prism cover test is performed in any eye in intermittent exotropia of more than 50 prism diopter without amblyopia or refraction abnormality that could affect the uncorrected visual acuity.


Assuntos
Humanos , Masculino , Ambliopia , Dominância Ocular , Exotropia , Estrabismo , Acuidade Visual
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