Acute conjunctivitis, or blepharitis triggered by copper deficiency following a short course of very high ascorbic acid intake, is a classic example of how taking too much Vitamin C can actually cause, or worsen an infection. Chronic conjunctivitis can occur when higher copper stores are gradually depleted following the practice of regularly overdosing on Vitamin C. It can also develop secondary to overdosing on other copper antagonists, such as Sulfur, or Zinc... Full Text