Once you are in, as long as you can keep the
doc happy at your annual medical - no problem. There are a very great many pilots
who either wear glasses or contact lenses -
a fact of life that when you reach your
mid-forties the old eyes start to struggle
for most people especially looking at approach charts at night.
Incidentally I know of a least two RAF pilots
who flew with one eye - no of course they
had both when they joined but lost 50% of their vision through illness or accident -
only stipulation was that they were not allowed to fly together !