so... I'm having a bit of a struggle with power crosses.
I can transpose back and forth in my head, but there seems to be a fundamental point I'm not grasping about working with power crosses.
Anyone got any pointers?
And, just out of curiosity, why does my instructor keep using so many plus cylinder notations? What's the point? We can't even order front side cylinder lenses, they just show up with a negative cyl lens form (my preceptor tried) and if we see a plus cyl Rx every month I'd be surprised.
ps: I now the only real answer is to just keep hitting the books, but I just felt like a bit of idle chat :7
-Chris
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