A Study of Optic Neuritis diagnosed by Pattern Shifted Visual Evoked Potential

J Korean Neurol Assoc > Volume 6(1); 1988 > Article

Journal of the Korean Neurological Association 1988;6(1): 9-15.

위상변이성 청각 뇌유발 전위를 이용해 진단된 원발성 시신경염에 대한 연구

인제대학교 신경과.

A Study of Optic Neuritis diagnosed by Pattern Shifted Visual Evoked Potential

Hyo Kun Cho, M.D.

Department of Neurology, Inje Medical College, Paik Hospital, Busan

Abstract

The 24 cases of primary optic neuritis diagnosed by pattern shifted visual evoked potential (PSVEP) were studied and the following results were obtained. 1 The sex ratio was equal but over sixties of age all patients were male. Fifty percent of patients developed from 10 years to 30 years old with peak incidence of age. 2. Among 24 patients, 8 patients were diagnosed within 1 month, 9 patients from 1 to 6 months, and 7 aptients after 1 year. 3. The visual disturbance developed in all cases, but eye ball pain in one case. 4. The visual acuity of 36 years of optic neuritis revealed below 0.4 in 80%, but over 0.8 in 3 cases. 5. Among 6 patients who developed symptom at left side only, 4 patients revealed abnormal PSVEP at left side only but 2 patient revealed abnormal PSVEP at right side only, but 1 patient abnormal PSVEP bilaterally; among 11 patients who developed symptom bilaterally, 9 patients revealed abnormal PSVEP bilaterally, but 1 patient left side only and 1 patient right side only. 6. Among 7 patients who developed abnormal fundus finding at left side only, 4 patients revealed abnormal PSVEP at left side only but 3 patients bilaterally; among 7 patients who developed abnormal fundus finding at right side only, 6 patients revealed abnormal PSVEP at right side only but 1 patient bilaterally; among 10 patients who developed abnormal fundus finding bilatreally, 8 patients revealed abnormal PSVEP bilaterally, but I patient left side only and 1 patient right side only. 7. Forteen patient with corticosteriod treatment, 7 patients improved and almost improved patients were female below 40 years old. "