VARIATIONS OF THE ACCOMMODATION PARAMETERS AND HEMODYNAMIC CHARACTERISTICS IN THE BLOOD VESSELS OF THE EYE DURING THE INSTRUMENTAL TREATMENT OF MYOPIA

The present study enrolled 30 children at the age from 8 to 18 (mean 11.03±0.41) years suffering from myopia of different degree. All the patients were given the functional treatment including trans-scleral laser stimulation of the ciliary body with the use of the MAKDEL 09 apparatus, opticoreflective training on the Viziotronikophthalmomyorelaxator, and magnetophoresis of a 4% taufon solution using the Polyus-3 apparatus. Accommodation was evaluated by both subjective (reserve of frelative and amplitude of absolute accommodation) and objective (accommodation response, habitual accommodation tension, open-fieldhabitual accommodation tension, resting accommodation tension) methods.Hemodynamic characteristics in the blood vessels of the eye were obtained by the duplex scanning technique in the color Doppler mapping and pulsed dopplerography regimes. The proposed treatment modality resulted in the enhancement of visual acuity with habitual subcorrection, accommodation reserve and amplitude. The objective accommodation response increased in a smaller degree while the resting accommodation tension decreased. Maximum systolic blood flow velocity in the posterior ciliary arteries and ophthalmic artery significantly increased to the same extent as the end diastolic velocity in the central retinal artery and thecentral retinal vein. Simultaneously, the resistance index in the posterior ciliary arteries decreased in comparison with its initial value which may suggest the improvement of regional circulation in the eyes.

myopia, accommodation, hemodynamics, color Doppler mapping, functional treatment