[Application of narrow-band optical radiation with a wavelength of 650 nm in complex treatment of children with developmental speech delay].

Objective: To substantiate the use of photochromotherapy (narrow-band optical radiation with an average wavelength of 650 nm) in the complex treatment of children with developmental speech delay on the type of general speech underdevelopment (GSU) of I and II degree.

Material And Methods: A number of children equal 70 aged from 4 to 6 years with developmental speech delay were examined. All patients were randomized into 2 clinically comparable groups: the 1st (study) group included 35 patients who received medical treatment in accordance with clinical recommendations in combination with the use of narrow-band optical radiation with an average wavelength of 650nm for 10 days; the 2nd (comparison) group consisted of 35 subjects who received standard drug therapy according to the established clinical recommendations.