Group II included 9 patients, 5 were not
diabetic or hypertensive (Group IIa)
and 4 patients were
diabetic and/or hypertensive (Group IIb). Patients of this group were given interferon alpha2b plus ribavirin for 24 weeks. All patients were assessed at the end of weeks 1, 2, 4, 6, and 8 and every 4 weeks during the treatment. Opthalmological examination were carried out before the start of treatment and every month after initiation of treatment.