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要約 目的:線維細胞層除去術による超音波乳化吸引術の最新方法について報告する。
対象と方法:豚眼水晶体の前面の表層皮質を吸引する変化を三宅-Apple viewで観察した。その後,線維細胞層除去術をヒト白内障眼で行った。
結果:豚眼水晶体の前面の表層皮質を吸引すると下方水晶体内容は水晶体囊から分離し,空隙ができた。これを線維細胞層除去術の下方分離とした。ヒト白内障眼で下方分離に続き核の2分割による上方分離を行った。
結論:線維細胞除去術では下方分離と上方分離の2段階で核皮質分離が成り立っていた。線維細胞層除去術は単独で施行でき,ハイドロの補助的な手術手技としても併用できる。
Abstract Purpose: To report our latest technique of phacoemulsification and aspiration without hydrodissection.
Method: Changes of anterior lens surface in a pig eye was observed by Miyake-Apple view following aspiration of the anterior capsule. A similar observation was made in a human eye with cataract following removal of lens fiber cell layer.
Findings: During suctioning of the anterior cortical surface in a porcine eye, the lens content in the lower hemisphere was separated from the lens capsule generating an empty space. This procedure was defined as lower separation after removal of lens fiber cell layer. An upper separation was possible following lower separation and dividing the nucleus into two halves of human cataract eye.
Conclusion: Removal of lens fiber cell layer, or separation of the cortex and nucleus from the lens capsule, consisted of lower and upper separation. This procedure could be conducted either separately or in combination with hydrodissection of the lens nucleus.
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