
Two six packs, one spherical and one toric. Biomedics is a compact soft lens range, and the pair we carry covers the two most common prescription shapes without any further decisions to make.
Read your prescription rather than guessing. If it lists only a sphere power for each eye, the 55 Premier is the lens you were written for. If it also lists a cylinder and an axis, you need the toric. A toric lens is built to hold a specific orientation on the eye, which is why the axis value matters and why the two are not interchangeable.
Each pack contains six lenses. Most orders therefore need one pack per eye, and if your eyes have different parameters they are two separate boxes rather than one.
Contact lenses are prescription medical devices in the United States, so a current prescription from your eye doctor is required. Have the full set of values to hand when you order: power, base curve and diameter for both lenses, plus cylinder and axis for the toric.
If you are switching from another brand, that is a conversation for your eye doctor rather than a swap you make at checkout. Lens materials and fits differ, and the parameters written for one lens do not transfer cleanly to another.