Hearing loss. Rea regard arun ganguly!

I have loss nearly 60℅ of hearing I have complete perforation both ear, 12 yrs back perforation of  only right eàr was repaired and hearing recovered by nearly 90℅ thereafter the hearing improved but only with right ear but gradually losing my hearing able to hear high pitch sound can't understand TV word except the sound even the movie speech is not clear, I have done audiometry 1 year back twice when it's found I have only 60℅ hearing in right ear and 10℅ in left ear and diagnosed sensory neutral deafness now a days many renowned company hearing aid are available and extensively advertising like siemens, Phillips etc claiming using the same hearing will be 100℅ normal, one ent doctor advise that before using hearing aid I have to first repair my perforation of left ear. But I don't want to go for surgery as my age is 65 and having diabetes and hypertension, please give appropriate advise in detail and oblige so that I can improve the quality of my life Rea Regard Arun Ganguly