There are no age limits when it comes to getting a cochlear implant as long as the patient has severe or profound hearing loss in both ears and hearing aids do not help.
You can get a cochlear implant for hearing as early as age 3 and 1 years old and as old as age 65 to 85 and above.
The average age that people get cochlear implants is around 68 years to 82 years old.
So as long as you're eligible for the cochlear implant and hearing aids do not improve your hearing then you should speak with your doctor about the cochlear implants which if you qualify the doctor will usually recommend you he cochlear implant.
Most health insurance companies will cover the cost of cochlear implants if they are deemed medically necessary.