[Effects of decreased nystagmus amplitude in children periodically exposed to light].

The effect of steady-state nystagmus suppression has been found upon periodic light exposure of the eye. The paper describes the exposure facility and procedure based on the changes in the amplitude and frequency of light pulse until there is a response of a patient's nystagmus parameters that are continuously monitored by video-assisted computer system. After periodic light exposures, there was a persistent suppression of nystagmus and a steady-state increase in visual acuity by an average of 0.1.

[Use of low-energy laser irradiation in patients with progressive myopia]. / Primenenie nizkoénergeticheskogo lazernogo izlucheniia u patsientov s progressiruiushchei blizorukost'iu.

A method of infrared laser exposure at a wavelength 1.3 microns for the treatment of progressive myopia has been developed, permitting a contactless trans-scleral irradiation of the ciliary muscle. Laser stimulation was carried out in 117 patients (234 eyes) aged 7 to 16. By the end of the first follow-up year the mean values of the positive part of accommodation increased by 2.0 to 2.5 diopters in patients of all age groups. A reduction of the parameters of ocular function was recorded 6-12 months after laser stimulation, though they remained higher than initially. A repeated curse of therapy helped normalize accommodation reserve parameters again. Prestimulation rheographic coefficient in all the examinees was 2.7 +/- 0.03% on an average, after treatment it was 3.44 +/- 0.02%. Hence, ciliary muscle stimulation by infrared laser helps in the majority of cases stabilize clinical refraction.