Other retinal antigens targeted by autoantibodies in CAR and npAIR include CAII, a 30-kDa enzyme whose expression is increased during carcinogenesis [7,45], and heat shock cognate protein 70 (hsc 70), a 65-kDa protein that acts as a chaperone to assist in various cellular processes including translocation into organelles, folding and rearrangement of proteins, protein degradation and protein aggre