"Capt. Geoffrey Thorpe" The Sea Hawk at wow way d0t com writes:

You can talk to an AME, but DO NOT make an appointment for an FAA physical!
If you attempt and fail then you are also locked out of the Sport Pilot
option. If (and only if) you can fly OK, but can't pass the physical you can
still be a sport pilot as long as you didn't fail a physical first. But, you
really don't want to find yourself with "weakness and lack of awareness "
at the end of a long demanding flight - you have to take care of yourself,
eh? Ask the AME if "sport pilot" is a bad idea.

You may be getting ahead of things a little. It has not yet been established
that he could not pass the physical or otherwise obtain a medical, and you're
talking as though he has already failed it. Neither hypoglycemia nor floaters
are unconditionally disqualifying. It would be best to make discreet
inquiries, have his state of health assessed by a physician familiar with FAA
requirements, or ...

Another option is the AOPA - they have a medical department and can give you
some information on how likey you are to have problems.

.... and then decide.

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