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Role of viral serology in the diagnosis of acute retinal necrosis syndrome.

Due to the devastating nature of acute retinal necrosis syndrome (ARNS), early diagnosis is essential. 5 cases of clinically diagnosed ARNA were investigated for CMC, herpes simplex and varicella zoster virus (VZV) infections. Of the three VZV IgM positive cases, two were positive in acute blood samples and one in vitreous fluid. Thus VZU can be incriminated as the causative agent of ARNS cases in North India.