[A critical view of alternative methods for treating visual complaints].
Irlen therapy, visual training, training of ocular motor control, and the correction method of H.-J. Haase represent a diversity of treatment methods that are mainly aimed at dyslexia, fatigue while reading, and general lack of concentration. We summarize the theoretical background of these methods, treatment approaches, and related clinical trials. None of these methods, because of incorrect theoretical concepts and an attempt to simplify the underlying causes, was found to have a specific influence on the patients' complaints. The absence of specific therapeutic effects and the high costs and time expenditure required should discourage practitioners from recommending these methods.
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