1) Reflective index: 1.59
2) Abbe value: 32
3) Specific gravity: 1.20
4) Transmittance: 91%
5) Internal-stress free, 100% protection 385nm
6) Diameter: 70mm for minus power and 65mm for plus power
7) Power range:
a) SPH: Plano to -6.00 / CYL:0.00 to -2.00
b) SPH: +0.25 to +4.00 / CYL:0.00 to -2.00
c) RX Power:
SPH: -6.25 to -10.00, SPH: +4.25 to +6.00,
CYL: -2.25 to -4.00
8) Minus power exceed -4.00 and all plus power lenses are with aspherical design
9) Available in tintable hard-coated, hard-coated, hard multi-coated