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衍射人工晶状体是否会破坏眼睛中色差和单色像差之间的有益相互作用?

Do diffractive intraocular lenses break the beneficial interaction between chromatic and monochromatic aberrations in the eye?

作者信息

Clavé Laura, Millan Maria S

机构信息

Departament d'Òptica i Optometria, Universitat Politècnica de Catalunya - BarcelonaTech, Violinista Vellsolà 37, 08222 Terrassa, Spain.

出版信息

Biomed Opt Express. 2024 Nov 25;15(12):6977-6988. doi: 10.1364/BOE.539354. eCollection 2024 Dec 1.

Abstract

This study investigates whether a diffractive presbyopia-correcting multifocal intraocular lens disrupts the favorable interaction between chromatic and monochromatic aberrations in the eye. This is analyzed not only for distant objects but also for closer viewing distances, where the lens utilizes different diffraction orders depending on its design. We consider diffractive designs based on the zero-diffraction order for far vision and the first diffraction order for near vision (i.e., 0F/+1N design). Within the limitations of clinical visual acuity examination in various groups of subjects, our results prove that diffractive presbyopia-correcting lenses with 0F/+1N design preserve the beneficial interaction between chromatic and monochromatic aberrations at both far and near vision. The results are obtained for lenses with varying energy efficiency distributions between the far and near focal points, ranging from balanced (bifocal contact lens) to far-dominant (50% far, 30% near in a trifocal intraocular lens) configurations. These findings are specific to the 0F/+1N design and cannot be extrapolated to other diffractive lens types.

摘要

本研究调查了一种用于矫正老花眼的衍射型多焦点人工晶状体是否会破坏眼睛中色差与单色像差之间的良好相互作用。不仅对远处物体进行了分析,还对更近的观察距离进行了分析,在更近的观察距离下,晶状体根据其设计利用不同的衍射级次。我们考虑基于远视力的零衍射级次和近视力的第一衍射级次的衍射设计(即0F/+1N设计)。在不同受试者组临床视力检查的限制范围内,我们的结果证明,采用0F/+1N设计的衍射型老花眼矫正晶状体在远视力和近视力下均能保持色差与单色像差之间的有益相互作用。对于远、近焦点之间能量效率分布不同的晶状体,从平衡型(双焦点隐形眼镜)到远焦点占优型(三焦点人工晶状体中远焦点占50%,近焦点占30%)的配置,均获得了相应结果。这些发现特定于0F/+1N设计,不能外推至其他衍射型晶状体类型。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b16/11640574/03bbed6716e5/boe-15-12-6977-g001.jpg

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