Systematic and Random Mapping Errors in Structure - Function Analysis of the Macula.

ABSTRACT:

Purpose

Quantify the spatial error in mapping perimetric stimuli for structure-function analysis resulting from the choice of mapping scheme and eye movements.

Methods

We analyzed data from 17 healthy and 30 glaucomatous participants. Structural data of the macula were collected with a spectral-domain optical coherence tomography. We extracted eye movement data and projection locations from a fundus tracking perimeter and quantified the retinal location mapping error (distance between the actual and the intended stimulus location in degrees from the fovea) for non-tracked perimetry in a 10-2 grid. First, we evaluated whether rotating the 10-2 grid to match the fovea-disc axis improved mapping accuracy. Second, we analyzed the effect of eccentric fixation, random eye movement

SUBMITTER: Montesano G 

PROVIDER: S-EPMC7900880 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature