The visual requirements are:
20/30 visual acuity or better in each eye
Can be achieved by correction - correction cannot exceed:
+ or - 3 dioptres of spherical error in each eye, cylindrical correction shall not exceed 2 dioptres. The difference between the amount of correction required for each eye shall not exceed 2 dioptres.
I believe it's not exceeding 3 dioptres in EACH eye, not as a total, so you should be (just about) fine.
Straight from the website. Hope that helps! I got my eyes tested and I apparently fall into these categories, it seems like you do too