Jascha A Wendelstein,Kevin Vallotton,Alex Ziörjen,Maya Müller,Kamran M Riaz,Seth M Pantanelli,Achim Langenbucher,Theo G Seiler
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引用次数: 0
Abstract
PURPOSE
To assess functional visual performance - particularly reading speed - under photopic and mesopic conditions in patients bilaterally implanted with either the AT LISA Tri 839MP or Tecnis Synergy DFR00V diffractive multifocal intraocular lenses (IOL).
DESIGN
Prospective randomized controlled trial.
METHODS
This trial included 60 patients that underwent bilateral cataract surgery with implantation of either the AT LISA Tri or Synergy IOLs. At 3 months postoperatively, distance-corrected visual acuity (VA) and distance-corrected reading speed were measured under photopic (85 cd/m²) and mesopic (3 cd/m²) conditions. Photopic defocus curves were also analyzed and compared.
RESULTS
Mesopic VA was significantly worse than photopic VA by ∼1 ETDRS line, without inter-IOL differences. Photopic reading speeds were 143.4 ± 40.0 and 136.4 ± 27.0 wpm for the AT LISA Tri and Synergy, respectively. Mesopic reading speeds declining significantly to 38.2 ± 34.2 and 22.4 ± 29.7 wpm under mesopic conditions, respectively. Mesopic reading speed was significantly lower than in photopic conditions for both groups.
CONCLUSIONS
Standard VA testing may underestimate functional limitations of multifocal IOLs under mesopic conditions. The substantial loss of reading speed suggests that mesopic near vision is impaired. Low luminance reading speed is a practical, patient-relevant endpoint and should be considered in IOL evaluations.
目的评估双侧植入AT LISA Tri 839MP或Tecnis Synergy DFR00V衍射多焦人工晶状体(IOL)患者在光和中视条件下的功能性视觉表现,特别是阅读速度。前瞻性随机对照试验。方法本研究纳入60例双侧白内障手术并植入AT LISA三型或Synergy iol的患者。术后3个月,分别在光敏(85 cd/m²)和介观(3 cd/m²)条件下测量距离矫正视力(VA)和距离矫正阅读速度。对光离焦曲线进行了分析和比较。结果视场VA明显差于光场VA,相差约1个ETDRS线,iol间无差异。AT LISA Tri和Synergy的光读速度分别为143.4±40.0和136.4±27.0 wpm。介观阅读速度显著下降,分别为38.2±34.2和22.4±29.7 wpm。两组的介观阅读速度均显著低于光敏条件下。结论标准VA检测可能低估了中屈光条件下多焦iol的功能局限性。阅读速度的显著下降表明中视近视力受损。低亮度阅读速度是一个实用的、与患者相关的终点,在人工晶状体评估中应予以考虑。
期刊介绍:
The American Journal of Ophthalmology is a peer-reviewed, scientific publication that welcomes the submission of original, previously unpublished manuscripts directed to ophthalmologists and visual science specialists describing clinical investigations, clinical observations, and clinically relevant laboratory investigations. Published monthly since 1884, the full text of the American Journal of Ophthalmology and supplementary material are also presented online at www.AJO.com and on ScienceDirect.
The American Journal of Ophthalmology publishes Full-Length Articles, Perspectives, Editorials, Correspondences, Books Reports and Announcements. Brief Reports and Case Reports are no longer published. We recommend submitting Brief Reports and Case Reports to our companion publication, the American Journal of Ophthalmology Case Reports.
Manuscripts are accepted with the understanding that they have not been and will not be published elsewhere substantially in any format, and that there are no ethical problems with the content or data collection. Authors may be requested to produce the data upon which the manuscript is based and to answer expeditiously any questions about the manuscript or its authors.