It is difficult to completely divide a hard nucleus. Excessive force is required, which may inadvertently lead to capsular bag distortion and cause stress to the zonules. We describe a chop technique that enables the surgeon to consistently achieve complete division of brunescent and black cataracts. Financial Disclosure: Neither author has a financial or proprietary interest in any material or method mentioned.
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Vasavada et al. (2011) studied this question.
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