Evaluating the macular vascular complexes' density by OCTA for dyslexia

Abstract

Aims/Purpose: To compare the vascular density of macular superficial and deep vascular complexes between dyslexic subjects and normoreaders at the fovea and parafovea.Methods: We performed a pilot study examining 60 eyes—36 of subjects with dyslexia and 24 of normoreaders as controls. Al the participants underwent an ophthalmological examination complemented with an optical coherence tomography angiography (OCTA) (Spectralis, Heidelberg Engineering, Germany), in which we measured the vascular density of the deep and superficial vascular complexes of the macula using an ETDRS123 pattern.Results: The deep vascular complex of the fovea was found to have a significant increase in the density of the different subfields of the inner and outer parafovea in the dyslexic group, as compared to the normoreaders. In contrast, no differences were found for the superficial vascular complex at any subfield.Conclusions: The increase in the deep vascular complex density of the macula could be associated with dyslexia.