Q&A: eyesight(base curve and power) to order CONTACTS?

Question by hanabi: eyesight(base curve and power) to order CONTACTS?
Hi there
I'm hoping to order contacts(Target days and nights) on the web.
But the thing is, I only have
these amounts and the site calls for me to fill out "base curve" and "electricity" which I do not know.

SPH(Proper= -four.fifty, Left= -four.fifty)
CYL(Left= -.twenty five)
AX(Left= 180)
P.D=(Proper, Left= 59)
Could you please help me? I actually want to know what my 'base curve' is.
(I feel the energy may possibly be

night and day contacts