MARILYN ANDERSON
                    
                    
                    
                    
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                        MY SON-IN-LAW WAS JUST TOLD HE MIGHT HAVE  THIS- BUT THE DR. DIDN'T EXPLAIN WHAT IT  IS EXACTLY. SOMETHING TO DO WITH THE CORNEA  AND HE DECIDED TO RUN X-RAY'S BECAUSE OF  HIS REOCCURING BACK PROBLEMS. MAYBE YOU   CAN EXPLAIN MORE. EVERYTHING I FIND ON THE  NET IMPLIES IT IS SOMETHING TO DO WITH  ARTHRITIS  THANKS,  MARILYN