Accuracy of Biometry and Intraocular Lens Power Calculation With Partial Coherence Interferometry in High Myopia.
10.3341/jkos.2008.49.11.1746
- Author:
Roo Min JUN
1
;
Soo Yeon KANG
;
Byoung Yeop KIM
Author Information
1. Department of Ophthalmology, School of Medicine, Ewha Womans University, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
High myopia;
IOL calculation;
IOL Master
- MeSH:
Biometry;
Cataract;
Eye;
Humans;
Interferometry;
Lenses, Intraocular;
Myopia
- From:Journal of the Korean Ophthalmological Society
2008;49(11):1746-1751
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To investigate the accuracy of biometry and intraocular lens (IOL) power calculation using partial coherence interferometry (IOL Master(R)) 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.
