My prescription just says "Plaen -1.75." I'm not certain on the first word, but I know it begins with "pl" and ends with "er" and it looks like "en" in the middle. I believe the -1.75 is the correction, and the sph means it is spherical I think the first word has something to do with the fact that it is just my left eye that needs the lens, but I can't figure out exactly what it means.

I guess your right eye does not have any prescription and left with -1.75.
Plaen should be PLano with means no rx,if you would like to buy eyeglasses online,i would suggest fax your prescription to the sellers,after they verfy your prescription,then place the order.