Parimi Vamsi, Elsner Ann E, Burns Stephen A, Gast Thomas J
School of Optometry, Indiana University, Bloomington, IN 47405, USA.
Aeon Imaging, LLC, Bloomington, IN 47403, USA.
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。
