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Si-Hwan Choi, Hyung-Bin Lim; Changes of Higher Order Aberration depending on Ocular Surface Indicators analyzed by Continuous Measurement after Phacoemusification. Invest. Ophthalmol. Vis. Sci. 2013;54(15):6040.
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To analyze the changes of higher order aberration(HOA) measured serially by KR-1W wavefront at every second for 10 seconds between before and after phacoemulsification and evaluate the relationships with the ocular surface indicators
Corneal Root-mean-square(RMS) of HOA was measured on 47 eyes of 30 patients at preoperatively and postoperatively 2 weeks, 4weeks, 6 weeks, 8 weeks by KR-1W using continuous measurement mode. We analyzed the relationships between the changes of corneal HOA and ocular surface indicators such as tear break up time, Schirmer test, and superficial punctate keratitis
The values of corneal RMS at 1 second and 10 seconds after blinking (0.190±0.067 /0.278±0.192) was highly increased in 2 weeks after surgery(0.417±0.306)/0.422±0.294), and significantly decreased in 8 weeks after surgery to the similar level before surgery. The difference of HOA between 1 second and 10 seconds after blinking was increased after surgery in all periods, but it was not statistically significant. The values of corneal RMS at 1 second and 10 seconds and difference between them were not significant (p>0.05) in groups divided depending on the presence of preoperative superficial punctate keratitis, 5 seconds on BUT and 10 mm on Schirmer test
The changes of corneal RMS after phacoemulsification was statistically significant, but those depending on ocular surface indicators were not significant. The phacoemulsification is more significant factor in postoperative corneal RMS than ocular surface indicators.
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