Forward voltage is just the voltage rating of the circuit in question. Reverse current is how much amperage the diode will be able to hold back without failing/shorting open. Not sure how to calculate what kind of reverse amperage your circuits will have however.
I.should have looked at the link first, uA should be miliamps, in this case it would appear the uA rating is what will leak back through the diode
http://www.radio-electronics.com/inf...cteristics.php