Accuracy of three common optometry methods in examination of refraction in juveniles.
10.11817/j.issn.1672-7347.2016.02.010
- Author:
Ting SU
1
;
Xiaoshan MIN
1
;
Shuangzhen LIU
1
;
Fengyun LI
1
;
Xingping TAN
1
;
Yanni ZHONG
1
;
Shaoling DENG
1
Author Information
1. Department of Ophthalmology, Xiangya Hospital, Central South University, Changsha 410008, China.
- Publication Type:Journal Article
- MeSH:
Adolescent;
Child;
Child, Preschool;
Humans;
Myopia;
diagnosis;
Optometry;
instrumentation;
methods;
Refraction, Ocular;
Refractive Errors;
Retinoscopy
- From:
Journal of Central South University(Medical Sciences)
2016;41(2):174-181
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To compare the results of the three methods of Suresight handheld autorefractor, table-mounted autorefractor and retinoscopy in examination of juveniles patients with or without cycloplegia.
METHODS:Firstly, 156 eyes of 78 juveniles (5 to 17 years old) were examined by using WelchAllyn Suresight handheld autorefractor and NIDEK ARK-510A table-mounted autorefractor with or without cycloplegia; secondly, retinoscopy was performed with cycloplegia.
RESULTS:The spherical power measured by methods without cycloplegia were significantly greater than those measured with cycloplegia (P<0.05); without cycloplegia, there was no significant difference in spherical power, cylindrical power and cylindrical axis between Suresight handheld autorefractor and retinoscopy (P>0.05). These results were highly consistent, suggesting a tendency towards a short sight. However, the spherical power and cylindrical power measured by table-mounted autorefractor was significantly different (P<0.05); with cycloplegia, there was significant difference in spherical power between Suresight handheld autorefractor and retinoscopy (P<0.05).
CONCLUSION:Cycloplegic retinoscopy is necessary for juvenile refraction examination. Under natural pupil situation, Suresight handheld autorefractor is better than table-mounted autorefractor, though both show a myopia tendency. Nevertheless, table-mounted autorefractor can be taken as a recommendation for the prescription of lens trial. As a strong reference for subjective optometry, retinoscopy should be the gold standard for measuring refractive errors.
