New trends in visual rehabilitation with MP-1 microperimeter biofeedback: optic neural dysfunction

Verboschi, Francesca and Domanico, Daniela and Nebbioso, Marcella and Corradetti, Giulia and Scalinci, Sergio Zaccaria and Vingolo, Enzo Maria (2013) New trends in visual rehabilitation with MP-1 microperimeter biofeedback: optic neural dysfunction. Functional Neurology, 28 (4). pp. 285-291. ISSN 1971-3274

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The aim of this study was to evaluate the efficacy of visual rehabilitation with MP-1 microperimeter biofeedback in advanced optic neural dysfunction due to glaucoma, and to precisely characterize fixation stability and location in affected patients. Ten patients (18 eyes) with advanced glaucoma were submitted to a rehabilitation protocol that consisted of: a 25-item questionnaire (National Eye Institute Visual Functioning Que stionnaire); measurement of visual acuity; a reading speed test; microperimetry with fixation study, retinal sensitivity and the bivariate contour ellipse area (BCEA). The rehabilitation program consisted of 10 training sessions of 10 minutes per eye performed over a period of one week and was repeated at four months, eight months, and one year. Statistical analysis was performed using the Student’s t-test and Spearman correlation; p values less than 0.05 were considered statistically significant. In 13 eyes fixation changed from unstable to relatively unstable while its location changed from predominantly eccentric to predominantly central. In five eyes, fixation changed from relatively unstable to stable with a change of location from poor central fixation to predominantly central fixation. Mean retinal sensitivity changed from 7.43±8.28 dB to 8.33±9.04 dB (p<0.05); the mean best corrected visual acuity was 0.98±0.66logMAR at the baseline assessment, and 0.75±0.6logMAR at the end of rehabilitation (p>0.05); reading speed improved from a mean value of 31.4±4.3 words/minute to 55.6±3.2 words/minute at the end of the training (p<0.05). The BCEA changed from 0.94±0.39 deg2 to 0.86±0.46 deg2 (p=0.76). Rehabilitation with MP-1 biofeedback in patients with advanced glaucoma is a useful means of improving these patients’ fixation stability, reading speed and quality of life.

Item Type: Article
Uncontrolled Keywords: bivariate contour ellipse area (BCEA), fixation, glaucoma, microperimetry, optic neural dysfunction, rehabilitation
Subjects: 600 Tecnologia - Scienze applicate > 610 Medicina e salute (Classificare qui la tecnologia dei servizi medici)
Depositing User: Marina Spanti
Date Deposited: 17 Dec 2015 13:02
Last Modified: 17 Dec 2015 13:02

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