Rehabilitation with biofeedback training in age-related macular degeneration for improving distance vision.

Rehabilitation with biofeedback training in age-related macular degeneration for improving distance vision.

PMID: 

Can J Ophthalmol. 2019 Jun ;54(3):328-334. Epub 2019 Apr 2. PMID: 31109472

Abstract Title: 

Rehabilitation with biofeedback training in age-related macular degeneration for improving distance vision.

Abstract: 

OBJECTIVES: Biofeedback training (BT) is a modern method for enhancing the use of preferred retinal loci (PRL) retraining for new retinal loci (TRL), hence improving far and near vision. This article attempts to clarify the optimal methodology for BT and the types of patients who can benefit most from BT.METHODS: This is a retrospective review of cases who received BT with the macular integrity assessment (MAIA) microperimetre. Outcome measures selected for analysis were visual acuity, PRL location, fixation stability, fixation pattern orientation, reading acuity, critical print size, and reading speed.RESULTS: Out of 30 cases who received BT, only those with age-related macular degeneration and visual acuity of logMAR 0.8 (20/126) or poorer showed a visual acuity gain (statistically significant of 12 letters) after BT. Those with other diagnoses and those with residual Early Treatment Diabetic Retinopathy Study best-corrected visual acuity of logMAR of 0.7 (20/100) or better showed only positive trends for visual acuity and a negative trend for fixation stability. All subjects showed a shift in PRL location toward the superior quadrant of the retina (p

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