Originally Posted by
SonicFlyer
Google for FAA disqualifying conditions and you'll see a list.
Probably not that simple.
For vision, they are usually more interested in BCVA rather than the underlying condition (unless it can progress rapidly or unpredictably).
In this case, if one eye is 20/20, and you can also see 20/20 with both eyes it should not be a problem to get a 1C with a waiver (they are pretty common for weak vision in one eye, in fact there are airline pilots flying with only one eye).
But ask your AME, he knows best.
I'm talking about the US and the FAA, I'm not familiar with other country's rules.