To determine the characteristics of astigmatism 1 week postoperatively or whether the final astigmatism is predictable from that present 1 week postoperatively, we analyzed 544 postcataract against-the-rule (AR) cases of astigmatism among 1,649 standard phacoemulsification cataract operations, all utilizing 10–0 Mersilene in double-running fashion. Postoperative AR astigmatism ≤1.0 dpt increased markedly 1 week postoperatively (2.72 ± 0.09 dpt) but decreased 6 months postoperatively. However, in postoperative AR astigmatism > 2.0 dpt, the increase 1 week postoperatively was not as great (2.16 ± 0.13 dpt) but tended to continue to increase even 6 months postoperatively, with a flatter corneal curvature being the responsible factor. Eyes with less astigmatism 1 week postoperatively showed exacerbation of final astigmatism 6 months postoperatively. This course was different from that of small incision cataract surgery.

Keywords:
Corneal astigmatism, Kelman phacoemulsification procedure, Postcataract against-the-rule astigmatism, Postcataract with-the-rule astigmatism
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© 1994 S. Karger AG, Basel
1994
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