通过模拟多焦点光学实现调节。
Accommodation through simulated multifocal optics.
作者信息
Vedhakrishnan Shrilekha, de Castro Alberto, Vinas Maria, Aissati Sara, Marcos Susana
机构信息
Instituto de Optica "Daza de Valdes", Consejo Superior de Investigaciones Cientificas, IO-CSIC, Serrano, 121, Madrid 28006, Spain.
Wellman Center for Photomedicine and Harvard Medical school, Massachusetts General Hospital, 50 Blossom St, Boston, MA, USA.
出版信息
Biomed Opt Express. 2022 Nov 30;13(12):6695-6710. doi: 10.1364/BOE.473595. eCollection 2022 Dec 1.
We evaluated the interaction of multifocal patterns with eye's accommodation. Seven patterns were mapped on the spatial light modulator and the deformable mirror of an adaptive optics visual simulator, and projected onto the subjects' eyes, representing different contact lens designs: NoLens, Bifocal Center Distance (+2.50D), Bifocal Center Near (+2.50D) and Multifocal Center Near-MediumAdd (+1.75D) and Center Near HighAdd (+2.50D), positive and negative spherical aberration (±1µm). The change in spherical aberration and the accommodative response to accommodative demands were obtained from Hartmann-Shack measurements. Positive spherical aberration and Center Distance designs are consistent with a higher accommodative response (p=0.001 & p=0.003): steeper shift of SA towards negative values and lower accommodative lag.
我们评估了多焦点模式与眼睛调节的相互作用。七种模式被映射到自适应光学视觉模拟器的空间光调制器和可变形镜上，并投射到受试者的眼睛上，代表不同的隐形眼镜设计：无镜片、双焦点中心距离（+2.50D）、双焦点中心近用（+2.50D）、多焦点中心近用-中加光（+1.75D）和中心近用高加光（+2.50D），以及正、负球差（±1µm）。通过哈特曼-夏克测量获得球差的变化以及对调节需求的调节反应。正球差和中心距离设计与更高的调节反应一致（p = 0.001和p = 0.003）：球差向负值的更陡偏移和更低的调节滞后。
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