Retinal "sweet spot" for myopia treatment.

ABSTRACT: We studied which retinal area controls short-term axial eye shortening when human subjects were exposed to + 3.0D monocular defocus. A custom-built infrared eye tracker recorded the point of fixation while subjects watched a movie at a 2 m distance. The eye tracker software accessed each individual movie frame in real-time and covered the points of fixation in the movie with a uniform grey patch. Four patches were programmed: (1) foveal patch (0-3 degrees), (2) annular patch (3-9 deg), (3) foveal patch (0-3 deg) combined with an annular patch (6-9 deg), and (4) full-field patch where only 6-10 deg were exposed to the defocus. Axial eye shortening was elicited similarly with full-field positive defocus and with the foveal patch, indicating that the fovea made only a minor contribution (-11 

SUBMITTER: Swiatczak B 

PROVIDER: S-EPMC11538286 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature