Are there anti-oxidant vitamins to treat allergies or asthma?

My father asked The Allergy Dude recently this question.  What about vitamin E?  Some small trials and retrospective studies have been done to investigate if vitamins can reduce the signs or symptoms of allergic diseases.  The short answer is NO, unfortunately.  In some other diseases, the answer can be yes sometimes.  For example, in age-related macular degeneration (AMD), in moderate and severe cases, the vitamins and mineral zinc helped to prevent further losses.  This link explains the findings of a multi-center trial very well.  AMD involves the retina, which is located in the back of the eye.  Cataracts are located in the lens of the eye, which is in the front, to clarify.  Cataracts are not prevented or slowed in development by any vitamins or minerals. If you know some one with AMD, please share this fact with them.