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|Title:||Comparisons of the handheld autorefractor, table-mounted autorefractor, and subjective refraction in Singapore adults|
|Source:||Farook, M., Venkatramani, J., Gazzard, G., Cheng, A., Tan, D., Seang-Mei, S. (2005-12). Comparisons of the handheld autorefractor, table-mounted autorefractor, and subjective refraction in Singapore adults. Optometry and Vision Science 82 (12) : 1066-1070. ScholarBank@NUS Repository. https://doi.org/10.1097/01.opx.0000192344.72997.7c|
|Abstract:||Purpose. The purpose of this article was to compare the Retinomax with the table-mounted autorefractor and subjective refraction in Singapore adults. Methods. Adults (n = 100) attending a tertiary eye hospital clinic were examined by an optometrist. First, subjective refraction testing was performed using a trial lens set, followed by handheld autorefractor tests using the Nikon Retinomax and the table-mounted autorefractor (Topcon RM8000B). Spherical equivalent and vector components of astigmatism were analyzed: J0 (Cartesian astigmatism) and J45 (oblique astigmatism). Results. The Retinomax autorefractor readings (mean = -4.69 D) were more minus compared with the table-mounted autorefractor (mean = -4.05 D) and subjective refraction (mean = -3.90 D). There were significant differences in J0 and J45 for comparisons between subjective refraction and Retinomax autorefraction, and table-mounted autorefraction and Retinomax autorefraction. Conclusion. The Retinomax autorefractor measures were more minus compared with the table-mounted autorefractor and subjective refraction. The Retinomax autorefractor is not recommended for research purposes, unless in remote inaccessible areas where a portable instrument is necessary and cycloplegia is not possible. Copyright © 2005 American Academy of Optometry.|
|Source Title:||Optometry and Vision Science|
|Appears in Collections:||Staff Publications|
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