Problems of Radiation Medicine and Radiobiology

N. A. Garkava¹, P. A. Fedirko², T. F. Babenko², R. E. Dorichevska²

¹State Institution «Dnipropetrovsk Medical Academy of the Ministry of health of Ukraine»,
Vernadsky str, 9, Dnipro, 49044, Ukraine
¹State Institution «National Research Center for Radiation Medicine of the National Academy Medical
Sciences of Ukraine», Melnykov str, 53, Kyiv, 04050, Ukraine

Radiation induced violations of blood circulation in the ciliary body and
changes of the anterior chamber angle in the pathogenesis of glaucoma
in clean/up workers of the Chornobyl NPP accident and residents of
contaminated areas

Objective. Estimate changes blood filling of the ciliary body and changes of the anterior chamber angle; study their influence to glaucoma pathogenesis in irradiated persons.
Materials and methods. Used the results of a randomly selected group survey of 41 clean-up workers of the Chornobyl NPP accident (clean-up workers), and 18 inhabitants of the zone of guaranteed voluntary resettlement; age at the time of the survey was 45–50 years. The control group consisted of 41 persons of the same age had not radiation exposure. State of the anterior chamber angle studied by gonioscopy, which was conducted 35 clean-up workers and 35 persons of the control group. Changes of the blood circulation in the ciliary body examine by the ophtalmoreography, what was done on 12 eyes of 6 clean-up workers, control was 12 eyes of 6 persons had not radiation exposure.
Results. Detection revealed of the blood circulation in the ciliary body in all clean-up workers, reography coefficient was probably lower (p < 0.05), than in the control group. The research of the state of the anterior chamber angle revealed a higher relative risk of appearance of involution changes of the anterior chamber angle in clean-up workers of ChNPP accident, in comparison with the control group was 3.5 (1.27; 9.5) χ2 = 7.48, p = 0.031. The same changes are characteristic for inhabitants of radiation-polluted territories.
Conclusions. Influence ionizing radiation causes a blood circulation decrease in the ciliary body and development changes of the angle of the anterior chamber. Presence of these changes can explain the features of the pathogenesis of glaucoma in irradiated - late manifestation and, at the same time, severe course.
Key words: glaucoma, ionizing radiation, clean-up workers of the Chornobyl NPP accident, residents of contaminated areas, anterior chamber angle, ciliary body, reography, the Chornobyl NPP accident.

Problems of radiation medicine and radiobiology. 2017;22:332–338.