Low Vision Service, (University Health Network Hospitals), Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada.
Private practice, Toronto, Ontario, Canada.
Arq Bras Oftalmol. 2021 Mar-Apr;84(2):179-182. doi: 10.5935/0004-2749.20210026.
Microperimetry biofeedback training is a vision rehabilitation method that involves the training of attention and oculomotor control, and the rehabilitation of poorly located and non-functional preferred retinal loci. It can significantly improve distance and near visual acuity in age-related macular degeneration. Previous studies have shown that biofeedback training using electrical nystagmography can reduce nystagmus amplitude and increase foveation time. However, these improvements have not been sustained following training sessions. We hereby report a pediatric case of idiopathic nystagmus in an 11-year old patient treated with microperimetric biofeedback to improve visual acuity and fixation stability. The training had a beneficial impact, positively affecting fixation stability as well as distance and near reading vision. Subjectively, improvement in quality of life was also reported. Conversely to previous studies, the positive effects in this case were maintained for as long as twelve months following therapy. To the best of our knowledge, this is the first case with long-term benefits to be reported in the literature.
微视野生物反馈训练是一种视力康复方法，涉及注意力和眼球运动控制的训练，以及位置不佳和非功能优势视网膜部位的康复。它可以显著提高年龄相关性黄斑变性患者的远、近视力。先前的研究表明，使用电眼震图的生物反馈训练可以降低眼震幅度并增加注视时间。然而，这些改善在训练后并未持续。我们在此报告一例 11 岁特发性眼球震颤患儿，采用微视野生物反馈治疗以提高视力和固视稳定性。训练产生了有益的影响，不仅对固视稳定性，而且对远、近阅读视力都有积极影响。主观上，生活质量也有所改善。与之前的研究相反，在治疗后长达 12 个月的时间里，该病例的积极效果得以维持。据我们所知，这是文献中首例报道的具有长期获益的病例。
