[Impact of continuous graduated slight myopathic defocusing on postnatal refractogenesis].

Based on today's theories of implication of visual feedback in the regulation of eye growth in postnatal refractogenesis, the authors propose new optical procedures for prevention of myopathy and its progression: continuous graduated slight myopathic defocusing of an image, by using specially chosen plus-lens spectacles. Spectacles for both eyes to be persistently worn were chosen for this defocusing in a risk group of children who had pseudomyopathy, slight or absent hyperopia reserve, and near-sighted parents. In a group of children with mild myopathy, the authors applied their developed and patented method of alternating monolateral defocusing, i.e., alternating distance anisocorrection by means of two pairs of persistently worn spectacles, which were changed every day. The methods were shown to have an inhibiting action on the rise of the anteroposterior axis, a refraction shift towards myopathy; the regular changes in anterior chamber depth and lenticular thickness, which lowered dynamic ocular refraction, were also revealed.