Paper Discussed: Lai TY, Chan WM, Li H, Lai RY, Lam DS. Multifocal Electroretinographic Changes in Patients Receiving Hydroxychloroquine Therapy. American Journal of Ophthalmology. 2005 November;140(5):794-807. Guest: Timothy Lai, M.D. Ophthalmologist of the Surgical and Medical Retina Unit Hong Kong Eye Hospital Honorary Staff Department of Ophthalmology and Visual Sciences Chinese University of Hong Kong Hong Kong