DIAGNOSTIC VALUE OF OPHTHALMOLOGICAL INVESTIGATION IN PATIENTS WITH BRAIN TUMORS

The objective of the work was an accentuation of clinical appearances of pathogenesis of congestive optic disc as a basis for improving their diagnosis. Material and methods. This work based on the analysis of ophthalmological symptoms in 169 patients with brain tumors that underwent neurosurgical tumor surgery at Neurosurgical Clinic of National Hospital (Ministry of Health of the Kyrgyz Republic) from 2014 to 2019. Patient’s age varied from 14 years to 67 years old, medium age was 34 years. The number of male was 63, and the number of female was 106. All patients were examined by using neurological investigation, MRI of the brain before surgery and MRI/CT after surgery. Benign tumors have been identified in 56 patients and malignant tumors in 50 patients. Glial brain tumors identified in most cases (49 patients). Results. We could investigate visual function of 55 (93 %) patients out of 169 patients with congestive optic disc caused by large appearances in the brain. 46 (27.4 %) of patients out of 169 had reduced visual acuity caused by congestive optic disc. Meanwhile 22 (13.1 %) patients had acuity in both eyes by 1.0; 6 (3.3 %) patients had a blind or a partially blind eye, whereas the reduction of visual acuity was in another eye; additionally 7 (4 %) patients were blind or nearly blind in both eyes. Conclusion. The frequency and severity of visual disorders in congestive optic disc depend on the congestive optic disc stages. The stage of severe congestive optic disc and other already existing visual disorders are prognostically unfavorable for visual functions of patients with congestive optic disc. The terms of congestive optic disc regression depend on the methods of treatment. Congestive optic disc regression is occurring slowly (from 1 month to 3 years) when the medicamental therapy is used for patients with benign intracranial hypertension. Surgical or bypass removal of the large appearance of liquor system of congestive optic disc regression is much faster (1 to 1.5 months).