8.5 mm equivalent
14.5 mm
Sph: +6.00 to -6.00, -6.50 to -9.00D in 0.50 steps
Cyl: -0.75, -1.25, -1.75, -2.25, -2.75 (-2.75 available from Plano to -9.00D)
Axis: 10 degree increments around the clock