Ocular accommodation and wavelength: The effect of longitudinal chromatic aberration on the stimulus-response curve.

ABSTRACT: The longitudinal chromatic aberration (LCA) of the eye creates a chromatic blur on the retina that is an important cue for accommodation. Although this mechanism can work optimally in broadband illuminants such as daylight, it is not clear how the system responds to the narrowband illuminants used by many modern displays. Here, we measured pupil and accommodative responses as well as visual acuity under narrowband light-emitting diode (LED) illuminants of different peak wavelengths. Observers were able to accommodate under narrowband light and compensate for the LCA of the eye, with no difference in the variability of the steady-state accommodation response between narrowband and broadband illuminants. Intriguingly, our subjects compensated more fully for LCA at nearer distances. That is,

SUBMITTER: Fernandez-Alonso M 

PROVIDER: S-EPMC10910436 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature