The effect of non-complete covering of the intraocular lens optics by the capsulorhexis edges and intraocular lens types on the formation of posterior capsular opacification after cataract surgery

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  • Fukuda Kazuhiro
    Department of Ophthalmology, School of Medicine, Iwate Medical University, Yahaba, Japan
  • Kizawa Junya
    Department of Ophthalmology, School of Medicine, Iwate Medical University, Yahaba, Japan Department of Ophthalmology, Iwate Prefectural Ninohe Hospital, Ninohe, Japan
  • Hashiura Testuya
    Department of Ophthalmology, School of Medicine, Iwate Medical University, Yahaba, Japan Department of Ophthalmology, Iwate Prefectural Ninohe Hospital, Ninohe, Japan
  • Kudo Riko
    Department of Ophthalmology, School of Medicine, Iwate Medical University, Yahaba, Japan Mitake Eye Clinic, Morioka, Japan
  • Kizawa Akimi
    Department of Ophthalmology, School of Medicine, Iwate Medical University, Yahaba, Japan
  • Itsukaichi Sora
    Department of Ophthalmology, School of Medicine, Iwate Medical University, Yahaba, Japan
  • Kurosaka Daijiro
    Department of Ophthalmology, School of Medicine, Iwate Medical University, Yahaba, Japan

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Other Title
  • 連続円形前嚢切開が不完全に眼内レンズ光学部を覆うことと眼内レンズの種類の白内障術後の後嚢混濁形成への影響
  • レンゾク エンケイ ゼン ノウ セッカイ ガ フカンゼン ニ ガン ナイ レンズ コウガクブ オ オオウ コト ト ガン ナイ レンズ ノ シュルイ ノ ハクナイショウ ジュツゴ ノ ゴノウ コンダク ケイセイ エ ノ エイキョウ

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Abstract

Most cataract patients recover their visual performance after cataract surgery. However, in 10%-30% of patients, these performances is reduced by posterior capsular opacity several years after surgery. The non-complete covering (NCC) of the intraocular lens optics by the capsulorhexis edges and intraocular lens types affect the degree of posterior capsular opacity. We retrospectively reviewed the medical records of 30 patients to examine which of these two factors, the degree of NCC and intraocular lens type, had a greater impact on the formation of Erschnig pearls (EPs). EPs are a type of posterior capsular opacity that significantly decreases visual performance. The formation of EPs was evaluated by invading points under the intraocular lens optics, its area, time of appearance, and time of neodymium-yttrium aluminum garnet (Nd: YAG) laser capsulotomy after surgery. These indicators were not affected by the degree of NCC. intraocular lens However, the time of EPs appearance after cataract surgery was significantly affected by the intraocular lens type. These findings suggest that the formation of EPs may be affected by the intraocular lens type rather than the degree of NCC.

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