Mira-Agudelo Alejandro, Torres-Sepúlveda Walter, Barrera John F, Henao Rodrigo, Blocki Narcyz, Petelczyc Krzysztof, Kolodziejczyk Andrzej
Grupo de Óptica y Fotónica, Instituto de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Medellín, Colombia.
Maksymilian Pluta Institute of Applied Optics, Warsaw, Poland.
Invest Ophthalmol Vis Sci. 2016 Dec 1;57(15):6870-6877. doi: 10.1167/iovs.16-19409.
We present the first physiological evaluation of the use of the light sword lens (LSL) for presbyopia compensation. The LSL is an axially asymmetric optical element designed for imaging with extended depth of focus.
A monocular visual simulator setup is implemented to measure visual acuity (VA). Physiological presbyopia is "mimicked" in human subjects by paralysis of the ciliary muscle, using topical application of a muscarinic antagonist. The effect of a contact lens-configured LSL on the mimicked presbyopia visual system is evaluated by measuring VA as a function of target vergence. The ability of the LSL to compensate presbyopia for 2 photopic luminance values was also analyzed.
The average VA values for 11 subjects suggest that the LSL can compensate for presbyopia across a wide range of target vergences for which the LSL was designed (-3 to 0 D). However, the proposed corrector element causes a loss of distance VA. The mean logMAR VA in that target vergence range was 0.07. The VA curves also show that luminance does not affect the expected behavior of the LSL-corrected presbyopic eye.
These results indicate that the LSL has significant potential as a visual aid for presbyopia.
我们首次对用于老视矫正的光剑透镜（LSL）进行了生理学评估。LSL是一种轴向不对称光学元件，设计用于具有扩展焦深的成像。
采用单眼视觉模拟器装置测量视力（VA）。通过局部应用毒蕈碱拮抗剂使睫状肌麻痹，在人类受试者中“模拟”生理性老视。通过测量作为目标聚散度函数的视力，评估隐形眼镜配置的LSL对模拟老视视觉系统的影响。还分析了LSL在2个明视觉亮度值下矫正老视的能力。
11名受试者的平均视力值表明，LSL可以在其设计的广泛目标聚散度范围内（-3至0 D）矫正老视。然而，所提出的矫正元件会导致远视力下降。在该目标聚散度范围内的平均对数最小分辨角视力为0.07。视力曲线还表明，亮度不会影响LSL矫正老视眼的预期行为。
这些结果表明，LSL作为老视助视器具有巨大潜力。
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