Comparison of the VISX WaveScan and OPD-ScanⅢwith the subjective refraction / 国际眼科杂志(Guoji Yanke Zazhi)
International Eye Science
;
(12): 1849-1851, 2014.
Article
in Chinese
| WPRIM
| ID: wpr-642032
ABSTRACT
AIM:
To compare the refractive errors measured by the VISX WaveScan, OPD - Scan Ⅲ and the subjective refraction.METHODS:
Seventy - six patients ( 152 eyes ) were recruited from January 2013 to December 2013. All patients were measured with subjective refraction by the phoropter (NIDEK, RT-5100), objective refraction by the WaveScan ( AMO Company, USA) , OPD-ScanⅢ ( Nidek Technologies, Japan). The sphere, cylinder, axis of the three methods were compared and analyzed.RESULTS:
The sphere measured by WaveScan was lower than that by subjective refraction, the difference was 0. 13±0. 30D (t=3. 753, P0. 05). The value of the difference between WaveScan and subjective refraction was 5. 87o±6. 19o for the axis and the difference between OPD-Scan Ⅲ and subjective refraction was 3. 82o±3. 95o. There was statistic significance (t=2. 817, P=0. 006).CONCLUSION:
For sphere and cylinder, WaveScan generated some deviation relative to subjective refraction. The Nidek OPD-ScanⅢ gives more accurate measures of objective refraction when compared with subjective refraction.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
International Eye Science
Year:
2014
Type:
Article
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