Go over the job discription if it has been provided if not call before the interview and ask them to send one.
After reviewing it, if you are able to do everything in the job discription go to the interview and see how the interviewer is. Go with your gut... and if you do tell them about your disability and they don't hire you maybe working there isn't the place for you because they are ignorant. Hey just sayin. lol
You probably already got the job so I'm kinda posting this for others to see that might be in this situation.
Good luck kiddo