Ocular Aberrations and Contrast Sensitivity in Eyes Implanted with Aspheric and Spherical Intraocular Lenses. |
Hong Seok Kim, Sang Woo Kim, Byung Jin Ha, Eung Kweon Kim, Tae im Kim |
1Vision Research Institute, Department of Ophthalmology, College of Medicine, Yonsei Uniiversity, Seoul, Korea. tikim@yumc.yonsei.ac.kr 2Department of Ophthalmology, College of Medicine, Ulsan Uniiversity, Ulsan, Korea. 3Siloam Eye Hospital, Seoul, Korea. |
비구면 인공수정체와 구면 인공수정체의 술 후 구면수차, 고위수차 및 대비감도의 비교 |
김홍석1ㆍ김상우2ㆍ하병진3ㆍ김응권1ㆍ김태임1 |
Vision Research Institute, Department of Ophthalmology, College of Medicine, Yonsei Uniiversity1, Seoul, Korea / Department of Ophthalmology, College of Medicine, Ulsan Uniiversity2, Ulsan, Korea / Siloam Eye Hospital3, Seoul, Korea |
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Abstract |
PURPOSE To compare spherical aberration, higher-order aberration, and contrast sensitivity of eyes implanted with aspheric (AcrySof IQ) or spherical (AcrySof Natural) intraocular lenses. METHOD: Seventy-five eyes implanted with posterior chamber intraocular lenses were divided into two groups: AcrySof IQ (35 eyes) and AcrySof Natural (40 eyes). Wavefront analysis (spherical, higher-order and total aberration) using iTace, and contrast sensitivity (under photopic and mesopic condition) using Optec 6500 were performed at 1 month and 3 months postoperatively. RESULT: One month after surgery, the IQ IOL (intraocular lens) group had lower values of spherical aberration (p<0.001) and higher-order aberration (p=0.048) than the Natural IOL group. The IQ IOL group also showed better contrast sensitivities at 1.5- and 3-cpd spatial frequencies in mesopic conditions. Three months after surgery, the IQ IOL group had less spherical aberration (p<0.001) and higher-order aberration (p=0.027) than the Natural IOL group and showed better contrast sensitivities at the 3-cpd spatial frequency in mesopic conditions. CONCLUSIONS: Aspheric AcrySof IQ IOL induced significantly less higher-order aberration and spherical aberration than AcrySof Natural IOL. The contrast sensitivity was better under mesopic conditions in the AcrySof IQ IOL-implanted group. |
Key Words:
AcrySof IQ;Aspheric intraocular lens;Contrast sensitivity;Spherical aberration |
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