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KMID : 0360220080490111746
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Journal of the Korean Ophthalmological Society
2008 Volume.49 No. 11 p.1746 ~ p.1751
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Accuracy of Biometry and Intraocular Lens Power Calculation With Partial Coherence Interferometry in High Myopia
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Jun Roo-Min
Kang Su-Yeon
Kim Byeoung-Yeob
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Abstract
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Purpose: To investigate the accuracy of biometry and intraocular lens (IOL) power calculation using partial coherence interferometry (IOL Master®) in highly myopic patients with axial lengths of 26 mm or greater.
Methods: Patients with axial lengths equal to or greater than 26 mm who had undergone cataract surgery were enrolled. IOL power was calculated using IOL Master and/or applanation ultrasonography with the SRK/T formula. Twenty-seven eyes using both IOL Master and applanation ultrasonography were included in a paired group, and forty-eight eyes using the IOL Master only and twenty-five eyes using applanation ultrasonography only were included in unpaired groups. The differences between the predicted refraction and the actual refraction were compared and analyzed.
Results: In the paired study, the axial lengths in patients using IOL Master (29.14±2.32 mm) were significantly longer than those of patients using applanation ultrasonography (28.57±2.23 mm) (p<0.05). The mean absolute error (MAE) of the IOL Master and applanation ultrasonography groups were 0.62±0.58D and 0.87±0.49D, respectively (p>0.05). In the unpaired study, the MAEs of the IOL Master and applanation ultrasonography groups were 0.61±0.61D and 0.65±0.63D, respectively.
Conclusions: In eyes with axial lengths of 26.0 mm or greater, the accuracy of IOL power calculation with IOL Master using the SRK/T formula was comparable to that with applanation ultrasonography. J Korean Ophthalmol Soc 2008;49(11):1746-1751
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KEYWORD
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High myopia, IOL calculation, IOL Master
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