난시교정인공수정체 삽입 후 난시교정 평가를 위한 KR-1W 수차계의 유용성
The Efficacy of KR-1W Aberrometer in Assessing the Astigmatism after Toric Intraocular Lens Implantation
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목적: 난시교정인공수정체 삽입 후 KR-1W로 측정한 안내난시 및 축을 알아보았다. 대상과 방법: 수정체유화술 및 Acrysof Toric IOL 삽입술을 시행 받은 39명(48안)을 대상으로 하였다. 술후 1개월 경과관찰 시점에서산동 전 KR-1W 안구 수차계로 안내 난시 축을 측정하였고, 산동 후 세극등검사로 난시교정인공수정체의 축을 평가하였다. 삽입된난시교정인공수정체의 축과 난시도수를 KR-1W 안구 수차계로 측정한 안내난시의 축 및 난시정도와 비교하였다. 결과: 산동 후 세극등현미경검사로 측정한 인공수정체의 평균 각도는 86.43 ± 47.49°였고, 안구 수차계에서 측정된 난시축은 88.93± 41.22°로 측정되었으며 상관계수는 0.992로 통계적으로 유의하였다(p＜0.001). 인공수정체 모델에 따라 SN60T3는 1.11 ± 0.47D,SN60T4는 1.71 ± 0.51D, SN60T5는 3.32 ± 0.78D로 측정되었다. 결론: 산동 후 삽입된 난시교정인공수정체의 축을 직접 확인하지 않아도 KR-1W 안구 수차계를 통해 위치를 평가할 수 있으며, 삽입된인공수정체에 대한 정보가 없어도 인공수정체 모델을 대략 유추하는 데 도움이 될 것으로 생각한다.
Abstract
Purpose: To evaluate the efficacy of the KR-1W aberrometer in assessing the astigmatism and the achieved axis after AcrySof Toric intraocular lens (IOL) implantation. Methods: Thirty-nine patients (48 eyes) that had undergone phacoemulsification and AcrySof Toric IOL implantation were included in the present study. At postoperative 1 month, ocular aberrations of all the eyes were measured using the KR-1W aberrometer before mydriasis and the achieved axis of AcrySof Toric IOL was measured by slit lamp examination after mydriasis. The achieved axis measured by slit lamp examination and the astigmatism of the implanted AcrySof Toric IOL were compared with the KR-1W. Results: The mean achieved lens axis after mydriasis measured by slit lamp examination and KR-1W was 86.43 ± 47.49degrees and 88.93 ± 41.22 degrees, respectively. The correlation coefficient of the 2 methods was 0.992 (p < 0.001). The measured astigmatism according to the AcrySof Toric IOL model was 1.11 ± 0.47D in SN60T3, 1.71 ± 0.51D in SN60T4,and 3.32 ± 0.78D in SN60T5. Conclusions: Without the need to directly evaluate the axis of implanted Toric IOL after mydriasis, the achieved lens axis can be measured by the KR-1W without mydriasis. The AcrySof Toric IOL model could be assessed by the KR-1W without information about the AcrySof Toric IOL model.
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