Frequency-of-seeing curves (psychometric functions) for perimetric stimuli in age-related macular degeneration.

ABSTRACT:

Purpose

Frequency-of-seeing (FoS) curves (psychometric functions) for perimetric stimuli have been widely used in computer simulations of new visual field test procedures. FoS curves for age-related macular degeneration (AMD) are not available in the literature and are needed for the development of improved microperimetry test procedures, which are of particular interest for use as clinical trial endpoints.

Methods

Data were refitted from a previous study to generate FoS curves for 20 participants with AMD, each tested at nine locations within the central 10°. Stimulus parameters, background luminance and dB scale were matched to the MAIA-2 microperimeter, and stimuli were presented in a method of constant stimuli to build up FoS curves over multiple runs. FoS curves were fi

SUBMITTER: Denniss J 

PROVIDER: S-EPMC11629837 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature