??????? ???? ????? ? ???? ???? ????????? ????? ???? ????? ????Differentiation concerning arteritic and non-arteritic PION is comparable to the whole process of differentiation in AION. In patients about the age of 50 with arteritic PION, elevations of serum erythrocyte sedimentation rate (ESR) and C protein (CRP) are beneficial in prognosis. A seru