But can you sit in a tower watching real "dots" flying around five miles from the airfield? The medical requirements for a PPL are somewhat lower than for an ATCO licemce.
I am sure that in your country there must be an organisation similar to our Civil Aviation Authority in the UK, which determines the medical standards required for various licences. Why do you not consult them about your worries so they can tell you immediately whether you would be OK?
You may have had a better response in the Medical forum?