Summary: Experts predict a virulent and long allergy season this spring. Those who suffer might now have a painless alternative to allergy shots. Also, an implantable lens could help those who suffer from age-related macular degeneration, the leading cause of irreversible vision loss. Plus, a look at the Oklahoma dental practice that might have infected thousands of patients with hepatitis or HIV. Our guest: Midday health contributor Dr. John Cmar.
