Lens Thickness Microfluctuations in Young and Prepresbyopic Adults During Steady-State Accommodation.

ABSTRACT:

Purpose

To determine whether lens mechanical dynamics change with age and with accommodative demands.

Methods

Lens thickness microfluctuations were measured using a high-speed custom-built spectral domain optical coherence tomography system in five young adults (20 to 25 years old) at 0 diopters (D), 2 D, 4 D, and maximum accommodative demand and in five prepresbyopes (38 to 45 years old) under relaxed and maximal accommodation. For each state, the measurements were repeated four times during the same session. Images of the central 2-mm zone of the lens comprising 170 A-lines/frame were acquired for 10 seconds, and axial lens thickness change was measured. Lens thickness microfluctuations (µm²/Hz) were assessed by integrating the power spectrum of lens thickness microfluctua

SUBMITTER: Rohman L 

PROVIDER: S-EPMC9919620 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature