Nucleus removal following circular capsulorhexis: surface cortex aspiration.
A technique for nucleus removal following circular capsulorhexis is described. After a continuous circular capsulotomy, soft surface cortex surrounding the nucleus is aspirated by an irrigation/aspiration device to separate the nucleus from cortical material and reduce its diameter. With phacoemulsification, the separated nucleus is rotated within the capsular bag and emulsified. With planned extracapsular cataract extraction, the upper nucleus equator is brought out of the capsular bag using an irrigating capsule retractor. The nucleus is then delivered by simple expression or by a Nishi delivery cannula.
Nishi
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Nishi Eye Hospital, Osaka, Japan.
D002387:Cataract Extraction / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D007907:Lens Nucleus, Crystalline / Q000601:surgery*; D007908:Lens, Crystalline / Q000601:surgery*; D013396:Suction