Responses of the Ocular Anterior Segment and Refraction to 0.5% Tropicamide in Chinese School-Aged Children of Myopia, Emmetropia, and Hyperopia
Joint Authors
Zhang, Zhengwei
Yuan, Ying
Zhu, Jianfeng
He, Xiangui
Du, Ergang
Jiang, Kelimu
Zheng, Wenjing
Ke, Bilian
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-09-20
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Purpose.
To investigate the changes of anterior segment after cycloplegia and estimate the association of such changes with the changes of refraction in Chinese school-aged children of myopia, emmetropia, and hyperopia.
Methods.
309 children were recruited and eligible subjects were assigned to three groups: hyperopia, emmetropia, or myopia.
Cycloplegia was achieved with five cycles of 0.5% tropicamide.
The Pentacam system was used to measure the parameters of interest before and after cycloplegia.
Results.
In the myopic group, the lenses were thinner and the lens position was significantly more posterior than that of the emmetropic and hyperopic groups in the cycloplegic status.
The correlations between refraction and lens thickness (age adjusted; r=0.26, P<0.01), and lens position (age adjusted; r=-0.31, P<0.01) were found.
After cycloplegia, ACD and ACV significantly increased, while ACA significantly decreased.
Changes in refraction, ACD, ACV, and ACA were significantly different among the three groups (P<0.05, all).
Changes of refraction were correlated with changes of ACD (r=0.41, P<0.01).
Conclusions.
Myopia presented thinner lenses and smaller changes of anterior segment and refraction after cycloplegia when compared to emmetropia and hyperopia.
Changes of anterior chamber depth were correlated with refraction changes.
This may contribute to a better understanding of the relationship between anterior segment and myopia.
American Psychological Association (APA)
Yuan, Ying& Zhang, Zhengwei& Zhu, Jianfeng& He, Xiangui& Du, Ergang& Jiang, Kelimu…[et al.]. 2015. Responses of the Ocular Anterior Segment and Refraction to 0.5% Tropicamide in Chinese School-Aged Children of Myopia, Emmetropia, and Hyperopia. Journal of Ophthalmology،Vol. 2015, no. 2015, pp.1-6.
https://search.emarefa.net/detail/BIM-1069788
Modern Language Association (MLA)
Yuan, Ying…[et al.]. Responses of the Ocular Anterior Segment and Refraction to 0.5% Tropicamide in Chinese School-Aged Children of Myopia, Emmetropia, and Hyperopia. Journal of Ophthalmology No. 2015 (2015), pp.1-6.
https://search.emarefa.net/detail/BIM-1069788
American Medical Association (AMA)
Yuan, Ying& Zhang, Zhengwei& Zhu, Jianfeng& He, Xiangui& Du, Ergang& Jiang, Kelimu…[et al.]. Responses of the Ocular Anterior Segment and Refraction to 0.5% Tropicamide in Chinese School-Aged Children of Myopia, Emmetropia, and Hyperopia. Journal of Ophthalmology. 2015. Vol. 2015, no. 2015, pp.1-6.
https://search.emarefa.net/detail/BIM-1069788
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1069788