Modern cataract surgery has significantly improved as a complete surgical procedure, and patient awareness of cataract surgery has been changed beyond the expectations of ophthalmologists. However, some patients are still dissatisfied with their postoperative visual performance, even when the visual acuity is 20/20 or better. Since cataract surgery is increasingly viewed as refractive surgery, it is important to reduce postoperative refractive errors and to improve the predictability of outcomes as much as possible.
The Japanese Society of Cataract and Refractive Surgery Clinical Survey in 2020 showed that the SRK/T formula is still most preferred in Japan. However, this formula can be influenced by axial length and corneal refractive power. To overcome these disadvantages, new generation formulas, such as the Barrett Universal II formula, the Hill RBF method, and the Kane formula, have been proposed, and we are facing a new age of intraocular lens power calculation. A nationwide multicenter study suggests that it is critical to optimize accumulation of biometric data from all institutions.
"},{"@language":"ja","@value":"現代の白内障手術は安全性が向上し，完成度の高い手技となっており，眼科医が考える以上に，白内障手術に対する患者の意識は日々変化しつつある。実際に術後矯正視力が1.0出ていても，患者が見え方の不満を訴えることも少なくない。このように白内障手術は，確実に屈折矯正手術のとしての比重が増加していて，術後屈折誤差をできる限り軽減し，予測性を向上することが重要となっている。
2020年JSCRS Clinical Surveyによれば，第3世代となるSRK-T式は，依然として国内において最も頻用されている。しかしながら，SRK-T式は眼軸長や角膜屈折力の影響を受けやすく，その欠点を克服すべくBarrett Universal II式，Hill RBF式，Kane式など，さまざまな計算式が提唱されており，IOL度数計算は新しい時代を迎えつつある。また，国内多施設共同研究からは，自施設のデータ蓄積による最適化の重要性が示唆される。
"}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410571039720218752","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000409597120"}],"foaf:name":[{"@language":"en","@value":"Kamiya Kazutaka"},{"@language":"ja","@value":"神谷 和孝"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"北里大学医療衛生学部視覚生理学"},{"@language":"en","@value":"Kitasato University School of Allied Health Sciences"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"09168273"},{"@type":"LISSN","@value":"09168273"},{"@type":"EISSN","@value":"21880522"}],"prism:publicationName":[{"@language":"en","@value":"Japanese Journal of Visual Science"},{"@language":"ja","@value":"視覚の科学"},{"@language":"en","@value":"Jpn.J.Vis.Sci"},{"@language":"ja","@value":"視覚の科学"}],"dc:publisher":[{"@language":"en","@value":"The Japanese Society of Ophthalmological Optics"},{"@language":"ja","@value":"日本眼光学学会"}],"prism:publicationDate":"2021","prism:volume":"42","prism:number":"3","prism:startingPage":"39","prism:endingPage":"43"},"url":[{"@id":"https://search.jamas.or.jp/link/ui/2022074938"}],"availableAt":"2021","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=%E7%9C%BC%E5%86%85%E3%83%AC%E3%83%B3%E3%82%BA%E5%BA%A6%E6%95%B0%E8%A8%88%E7%AE%97","dc:title":"眼内レンズ度数計算"},{"@id":"https://cir.nii.ac.jp/all?q=%E8%A1%93%E5%89%8D%E7%94%9F%E4%BD%93%E8%A8%88%E6%B8%AC","dc:title":"術前生体計測"},{"@id":"https://cir.nii.ac.jp/all?q=SRK/T%E5%BC%8F","dc:title":"SRK/T式"},{"@id":"https://cir.nii.ac.jp/all?q=Barrett%20Universal%20II%E5%BC%8F","dc:title":"Barrett Universal II式"},{"@id":"https://cir.nii.ac.jp/all?q=%E7%99%BD%E5%86%85%E9%9A%9C%E6%89%8B%E8%A1%93","dc:title":"白内障手術"},{"@id":"https://cir.nii.ac.jp/all?q=Intraocular%20lens%20power%20calculation","dc:title":"Intraocular lens power calculation"},{"@id":"https://cir.nii.ac.jp/all?q=Preoperative%20biometry","dc:title":"Preoperative biometry"},{"@id":"https://cir.nii.ac.jp/all?q=SRK/T%20formula","dc:title":"SRK/T formula"},{"@id":"https://cir.nii.ac.jp/all?q=Barrett%20Universal%20II%20formula","dc:title":"Barrett Universal II formula"},{"@id":"https://cir.nii.ac.jp/all?q=Cataract%20surgery","dc:title":"Cataract surgery"}],"dataSourceIdentifier":[{"@type":"JALC","@value":"oai:japanlinkcenter.org:2008867167"},{"@type":"CIA","@value":"130008097968"}]}