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KMID : 0360220100510050664
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Journal of the Korean Ophthalmological Society
2010 Volume.51 No. 5 p.664 ~ p.669
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Intraocular Lens Power Calculation Using Haigis-L Method After Corneal Refractive Surgery
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Yun Young-Jun
Choi Si-Hwan
Kwag Joo-Young
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Abstract
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Purpose: To evaluate the Haigis-L method of IOL Master that does not require preoperative data for intraocular lens (IOL) power calculations and compare the results with other methods requiring preoperative data.
Methods: Fifty eyes of 25 patients who had undergone laser-assisted subepithelial keratectomy (LASEK) and were followed for 1 month or longer were selected for this study. IOL power was calculated by four different methods: clinical history method, Feiz-Mannis method, modified Masket method, and Haigis-L method.
Results: The mean calculated IOL powers showed the following results: clinical history method; 23.65 D, Feiz-Mannis method; 24.45D, modified Masket method; 22.89D, and Haigis-L method; 23.80D. Each IOL power differed statistically from others (p=0.000). The difference between each method was analyzed by the Bonferroni test, with the Feiz-Mannis method showing the highest result and the modified Masket method, the lowest. The clinical history method and Haigis-L method presented similar results.
Conclusions: For patients without data prior to corneal refractive surgery, the Haigis-L method is as accurate as the clinical history method. Therefore, comparatively accurate results can be produced in IOL power calculations using the Haigis-L method after corneal refractive surgery.
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KEYWORD
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Haigis-L method, IOL master, IOL power calculation, LASEK, Refractive surgery
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