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Usefulness of the KANE formula in astigmatism correction Yukihira Yoshioka 1 , Ryota Kabura 1 , Rumi Iwasaki 1 , Hinako Amikawa 1 , Minagi Yasukochi 1 , Tetsuji Takeshita 1 1Department of Ophthalmology, Kamiamakusa General Hospital pp.955-962
Published Date 2026/8/15
DOI https://doi.org/10.11477/mf.037055790800080955

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Abstract Objective:This study aimed to evaluate the accuracy of the KANE formula, a novel intraocular lens power calculation method that utilizes artificial intelligence for correcting astigmatism.

Subjects and Methods:This study included 129 patients(246 eyes) who underwent cataract surgery at Kamiamakusa General Hospital with a target spherical power of 0D. Toric intraocular lenses(T-IOLs), such as DIW(Johnson & Johnson), LS-313MF15T(Santen), and YP-T(Kowa), were implanted. Postoperative outcomes were compared between the KANE formula group(K group) and the group in which cylindrical power was calculated using each manufacturer's web-based calculator and spherical power with the Barrett Universal Ⅱ formula(W group). The primary outcomes were subjective and objective astigmatism at one month postoperatively.

Results:One month postoperatively, there was no significant difference in subjective cylinder power between the K and W groups had no significant difference for any of the T-IOL models. The K group had significantly lower objective cylinder power than in the W group for the LS-313MF15T, whereas no significant differences were observed for the other T-IOLs.

Conclusion:The accuracy of the KANE formula for subjective astigmatism correction was comparable to that of web-based calculators.


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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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