1.Index: 1.499, 1.56 Omega lens 2.Power: +6.00 to +20.00 3. UC, HC, HMC 4.Cylinder Available 5. Finished and Semi Finished Omega Lens1.Index: 1.499, 1.562.Power: +6.00 to +20.003. UC, HC, HMC4.Cylinder Available5. Finished and Semi Finished Omega Lens (Optical Lens)