Army chief has become deaf.I as a layman don't think it should effect him professionally. if i remember correctly we had a serving general who had lost a leg in war. IN any case generals are not supposed to listen but i know of persons who are paid to listen but are completely deaf i mean judges many judges don't hear what is being argued before them.Unfortunately they are not put to fitness tests although some of them continue to discharge judicial functions up to the age of seventy