采用麦克斯韦观察法、小瞳孔以及自适应光学技术进行不同程度波前校正的潜在视力测试仪。
Potential vision tester using Maxwellian view, small pupil, and different levels of wavefront correction with adaptive optics.
作者信息
Parimi Vamsi, Elsner Ann E, Burns Stephen A, Gast Thomas J
机构信息
School of Optometry, Indiana University, Bloomington, IN 47405, USA.
Aeon Imaging, LLC, Bloomington, IN 47403, USA.
出版信息
Biomed Opt Express. 2025 May 30;16(6):2528-2542. doi: 10.1364/BOE.559475. eCollection 2025 Jun 1.
We demonstrate a potential vision tester (PVT) designed to study and improve the accuracy of visual acuity (VA) measurements in the aging eye. Key features include a high-resolution visual display presented in Maxwellian view, a 3 mm pupil to limit wavefront (WF) aberrations, a Hartmann Shack wavefront sensor to quantify the ocular aberrations, and a deformable mirror to correct optical aberrations. VA was measured using four alternative forced choices for a single black-on-white E stimulus in each trial, with three different levels of correction for the ocular aberrations. For normally sighted subjects, VA was not significantly better when higher-order aberrations beyond second order were corrected.
我们展示了一种潜在视力测试仪（PVT），其设计目的是研究并提高对老龄眼睛视力（VA）测量的准确性。关键特性包括以麦克斯韦视野呈现的高分辨率视觉显示器、一个3毫米瞳孔以限制波前（WF）像差、一个用于量化眼像差的哈特曼-夏克波前传感器以及一个用于校正光学像差的可变形镜。在每次试验中，针对单个黑白E形视标，使用四种替代强制选择法测量视力，并对眼像差进行三种不同程度的校正。对于视力正常的受试者，校正二阶以上的高阶像差时，视力并无显著改善。
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