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KMID : 0360220120530060833
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Journal of the Korean Ophthalmological Society
2012 Volume.53 No. 6 p.833 ~ p.838
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Comparison of Ocular Biometry and Postoperative Refraction in Cataract Patients Between Lenstar® and IOL Master®
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Shin Joong-Won
Seong Min-Chul
Kang Min-Ho
Cho Hee-Yoon
Lee Yoon-Jung
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Abstract
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Purpose: To compare axial length, anterior chamber depth, and keratometric measurements of an optical low-coherence reflectometry device with those of other ocular biometry devices and evaluate the accuracy of predicting postoperative refraction.
Methods: A total of 32 eyes in 32 patients who received cataract surgery were included in the present study. The axial length, anterior chamber depth, and keratometry were measured by optical low-coherence reflectometry (Lenstar
LS900®), partial coherence interferometry (IOL master®), and ultrasound. The SRK/T formula was used to calculate IOL
power, and predictive error that subtracts predictive refraction from postoperative refraction was compared among ocular
biometry devices.
Results: Axial length, anterior chamber depth, and keratometry had a strong correlation and demonstrated no statistically significant differences between Lenstar LS900® and other devices. The Bland?Altman plots showed a high degree of agreement between Lenstar LS900® and other devices. The mean absolute prediction errors in Lenstar LS900® and IOL master® were not significantly different.
Conclusions: The ocular biometric measurements and prediction of postoperative refraction using Lenstar LS900® were as accurate as IOL master® and ultrasound.
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KEYWORD
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Lenstar LS900, Ocular biometry, Optical low coherence reflectometry
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