Evaluation of a liquid membrane-based tunable lens and a solid-state LIDAR camera feedback system for presbyopia

Rajat Agarwala; Olga Lukashova Sanz; Immanuel P Seitz; Felix F Reichel; Siegfried Wahl

doi:10.1364/BOE.471190

Evaluation of a liquid membrane-based tunable lens and a solid-state LIDAR camera feedback system for presbyopia

Biomed Opt Express. 2022 Oct 14;13(11):5849-5859. doi: 10.1364/BOE.471190. eCollection 2022 Nov 1.

Authors

Rajat Agarwala¹, Olga Lukashova Sanz^{1

2}, Immanuel P Seitz^{1

2}, Felix F Reichel^{1

3}, Siegfried Wahl^{1

2}

Affiliations

¹ Institute for Ophthalmic Research, University of Tuebingen, Elfriede-Aulhorn-Str. 7, Tuebingen, 72076, Germany.
² Carl Zeiss Vision International GmbH, Turnstr. 27, Aalen, 73430, Germany.
³ University Eye Hospital, Centre for Ophthalmology, University Hospital Tübingen, Tübingen, Germany.

Abstract

Presbyopia is an age-related loss of accommodation ability of the eye which affects individuals in their late 40s or early 50s. Presbyopia reduces the ability of a person to focus on closer objects at will. In this study, we assessed electronically tunable lenses for their aberration properties as well as for their use as correction lenses. The tunable lenses were evaluated in healthy subjects with cycloplegia by measuring visual acuity and contrast sensitivity for their use in presbyopia correction. Furthermore, we have developed and demonstrated the feasibility of a feedback mechanism for the operation of tunable lenses using a portable solid-state LIDAR camera with a processing time of 40 ± 5 ms.