Computer Vision Syndrome and Cerebral Venous Circulation

Computer vision syndrome (CVS) is a prevalent condition in the world. It develops after long hours with computers or mobile electronic devices. The main signs of CVS include optical, pain and fatigue. Limited data are published describing pathophysiological links between the blood circulation and CVS with no obvious correlations. The number of such studies is not enough. Evidence for effective methods of pharmacotherapy for CVS is lacking. Purpose to analyze the cerebral blood circulation in young patients with CVS and its dynamics after using Gingko biloba extract in Uzbekistan Republic. Material and methods. Eighty five patients with CVS were the participants of our open pilot study. They were divided into two groups: the main group (45 patients, 42% men, mean age 27,7 ± 7,1 year) and comparison group (40 patients, 50% men, mean age 31,6 ± 4,8 year). All study participants got standard therapy, but those in the main group also got 120 mg of Ginkgo biloba extract (40 mg 3 times a day) during 60 consecutive days. Three visits were assigned for each patient: before the start of treatment, on Day 30 and Day 60. The symptoms and ultrasound duplex-triplex scanning data were analyzed for venous hemodynamics assessment. Results. The results show that 78,8% of our patients had abnormal venous circulation with increase linear blood flow velocity in vertebral veins and basal vein of Rosenthal. The statistically significant decrease of initially abnormally high parameters was observed beginning with visit 2 in the main group and beginning with visit 3 in the comparison group. Conclusion. The results of the study can let us think about the possible influence of Ginkgo biloba extract to a better normalization of cerebral venous circulation in patients with CVS. More prospective studies with a bigger number of patients and more detailed clinical-and-instrumental data are needed