I mentioned it to him. He looked up the side effects on his web information. It didn't mention anything about vision issues. Had a procedure at the eye doctor about the same time we changed to Gammaguard. Thought the eye procedure may have had something to do with vision change. Have an appoint to recheck my eyeglasses. I will also check my records to see when the IVIG meds changed and the date of the eye Laser treatment was.