[A study on stretching capacity of continuous circular capsulorhexis and nucleus delivery].
The stretching capacity of continuous circular capsulorhexis (CCC) in 20 human cadaver eyes was determined. The increases in circumference of the tear opening ranged from 164. 5% to 190.9% and that in area of the opening ranged from 235.2% to 364.6%. If a proper technique of capsulorhexis is adopted, the nucleus of 7-9.5 mm in diameter and 3-4.5mm in thickness can be delivered through a CCC opening of 4-6mm in diameter by hydrodissection and hydroexpression of nucleus without capsular tear.
Meng
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Xi'an Ancient City Eye Hospital.
Magd
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Waring
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D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D007903:Lens Capsule, Crystalline / Q000601:surgery*; D007907:Lens Nucleus, Crystalline / Q000601:surgery; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D013514:Surgical Procedures, Operative / Q000379:methods