Glaucoma: biofeedback strategies with Microperimetry

Autori: Facciolo G. - Gagliardi A. - Vingolo E.M.

Purpose: Low vision rehabilitation in advanced optic nerve damage was described previously in several reports demonstrating its positive effect in improving visual performances. Initially proposed simply as magnification system(optical and optoelectronics), in actual clinical practice new diagnostic and informatic tools helped the patient as active tasks for visual function recovery. Microperimetry allows to follow up the progression of the disease, to exactly localize position shape and deepness of the scotoma and finally tohave a precise localization and evaluation of fixation. The goal of our study is to assess in a selected population of advanced glaucoma patients if microperimetric biofeedback may be able to restore partially some visual tasks.

Materials: Were selected 10 patients (18 eyes) with advanced primary open angle glaucoma that underwent to a rehabilitative protocol as follows: visual acuity evaluation, reading speed, microperimetry, fixation analysis (BCEA or Bivariate Contour Ellipse Area). Each patient scheduled 10 sessions of biofeedback for eye (10 minute each), recall of biofeedback schedulinowas reproposed at month 4-8-12. Statistical analysis was performed with double tailed T test student and Spearman to correlate reading speed and visual acuity with retinal sensitivity.


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