Optic Flow Processing in Patients With Macular Degeneration

PURPOSE: Optic flow processing was characterized in patients with macular degeneration (MD). METHODS: Twelve patients with dense bilateral scotomas and 12 age- and gender-matched control participants performed psychophysical experiments. Stimuli were dynamic random-dot kinematograms projected on a l...

Descripción completa

Detalles Bibliográficos
Autores principales: Guénot, Jade, Trotter, Yves, Fricker, Paul, Cherubini, Marta, Soler, Vincent, Cottereau, Benoit R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Association for Research in Vision and Ophthalmology 2022
Materias:
Low Vision
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9672899/
https://www.ncbi.nlm.nih.gov/pubmed/36378131
http://dx.doi.org/10.1167/iovs.63.12.21
Descripción
Sumario:PURPOSE: Optic flow processing was characterized in patients with macular degeneration (MD). METHODS: Twelve patients with dense bilateral scotomas and 12 age- and gender-matched control participants performed psychophysical experiments. Stimuli were dynamic random-dot kinematograms projected on a large screen. For each component of optic flow (translational, radial, and rotational), we estimated motion coherence discrimination thresholds in our participants using an adaptive Bayesian procedure. RESULTS: Thresholds for translational, rotational, and radial patterns were comparable between patients and their matched control participants. A negative correlation was observed in patients between the time since MD diagnosis and coherence thresholds for translational patterns. CONCLUSIONS: Our results suggest that in patients with MD, selectivity to optic flow patterns is preserved.

Ejemplares similares