| Corneal Astigmatic Changes by Temporal Incision or Oblique Incision in Sutureless Cataract Surgery. |
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Il Chan Park, Chang Yeul Park, Kwang Hyun Ryu |
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Department of Ophthalmology, Maryknoll Hospital, Pusan, Korea. |
| 이측절개 및 상이측절개에 의한 무봉합백내장수술후 각막난시의 변화 |
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박일찬(Il Chan Park),박창열(Chang Yeul Park),류광현(Kwang Hyun Ryu) |
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| Abstract |
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We analyzed postoperative astigmatic changes according to the location of incision in 129 eyes that sutureless cataract surgeries were performed. We followed up the astigmatic changes until six months postoperatively, and compared the results of two groups of which the one is the preoperative against-the-rule astigmatic cases with superior incisions and temporal incisions, the other is the preoperative oblique astigmatic cases with superior incisions and superotemporal incisions. In the preoperative against-the-rule astigmatic cases, postoperative astigmatic changes were shifted toward against-the-rule astigmatism(0.23 diopters) in superior incisions and toward with-the-rule astigmatism(0.20 diopters) in temporal incisions until 6 months following surgery(p<0.01). Surgically induced astigmatisms were also less for in temporal incisions than superior incisions(p<0.01) and corneal astigmatisms were stabilized after two weeks postoperatively in both groups(p<0.05). In the preoperative oblique astigmatic cases, postoperative astigmatic changes were shifted toward against-the-rule astigmatism(0.63 diopters) in superior incisions and also toward against-the-rule astigmatism(0.46 diopters) in superotemporal incisions until 6 months following surgery(p>0.05). Surgically induced astigmatisms were less in superotemporal incisions than superior incisions (p<0.01) and corneal astigmatisms were stabilized after one month postoperatively in both groups(p<0.05). These results demonstrated that surgically induced astigmatisms were decreased by the incision at steep axis, and in the cases of preoperative againstthe rule astigmatism, the preexisting astigmatisms were decreased by the temporal incisions. |
| Key Words:
Astigmatism;Superior incisions;Superotemporal incisions;Sutu reless cataract surgery;Temporal incisions |
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