SPH: -0.50 ~ -4.00;CYL: -0.50~-2.00

SPH: +0.50~+4.00;CYL:+0.50~+2.00

1.61 Aspheric Lensessuggestion power:

SPH: -0.50 ~ -6.00;CYL: -0.50~-2.00

SPH: +4.00~+6.00;CYL:+0.50~+2.00

1.67 Aspheric Lenses suggestion power:

SPH: -3.00 ~ -10.00;CYL: -0.50~-2.00

SPH: +4.00~+10.00;CYL:+0.50~+2.00

1.74 Aspheric Lenses suggestion power:

SPH: -3.00 ~ -15.00;CYL: -0.50~-2.00

SPH: +3.00~+15.00;CYL:+0.50~+2.00

If you have any question,please contact my store customer service.