Help & Tips for the Prescription

The prescription you received from the eye specialist contains a number of values.

The SPH value (Sphere) indicates your nearsightedness (-minus) and/or farsightedness (+plus). 

The CYL and AXI values (C cylinder & A axis) indicate Astigmatism. CYL indicates the lens power needed to correct it, and AXI indicates the curvature of your cornea. A number between 1 and 180 degrees.

Not sure? Read more here.