中间视觉
眼科
明视
屈光度
医学
人工晶状体
对比度(视觉)
眩光
验光服务
视力
超声乳化术
光学
物理
视网膜
材料科学
复合材料
图层(电子)
作者
Thomas Kohnen,Myriam Böhm,Eva Hemkeppler,Sabrina Schönbrunn,Nina de’Lorenzo,Kerstin Petermann,Michael Herzog
出处
期刊:Eye
[Springer Nature]
日期:2019-04-26
卷期号:33 (10): 1556-1563
被引量:64
标识
DOI:10.1038/s41433-019-0443-x
摘要
To evaluate the visual performance of an extended depth of focus (EDOF) intraocular lens (IOL) for patient selection. This prospective non-comparative case series evaluated fifty-two eyes (26 patients) after bilateral implantation of the Tecnis Symfony IOL. Exclusion criteria were previous ocular surgeries, corneal astigmatism of >1.5 diopter, and ocular pathologies or corneal abnormalities. Uncorrected (UCVA) and distance-corrected (DCVA) visual acuity (VA) in 4 m, 80 cm, 60 cm and 40 cm (logMAR), defocus curve, contrast sensitivity (CS) and a questionnaire on subjective quality of vision (QoV) were assessed after 3 months. UCVA was −0.02 ± 0.071 logMAR at 4 m, 0.01 ± 0.077 logMAR at 80 cm, 0.08 ± 0.187 logMAR at 60 cm and 0.22 ± 0.153 logMAR at 40 cm. Defocus curve testing showed a flat VA range from 0.00 to −1.50 D (−0.05–0.02 logMAR). At near distance from −2.0 to −2.5 D a dip of DCVA was observed (0.14–0.28 logMAR). CS under photopic and mesopic conditions without and with glare was 1.56 logCS, 0.86 logCS, 0.78 logCS, respectively. Spectacle independence was achieved in 100% for distance and intermediate vision and 71% of patients at near distance. This EDOF IOL provides excellent intermediate and far (<0.1 logMAR) and acceptable near UCVA (<0.3 logMAR). Defocus curve testing confirmed an EDOF between far and intermediate distance and showed a dip at near distance. It provides good QoV, CS, high spectacle independence, perception of few optical phenomena, and particularly good night-driving capabilities.
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