For Defocus Lenses，the appearance is same as ordinary glasses, but the lenses have a special defocus design. Defocus lenses are designed similar to orthokeratology technology. By adding hyperopic defocus in the peripheral area of the lens. Move the focus projected behind the retina onto or in front of the retina,creating a myopic defocus signal. It can inhibit the phenomenon of eye tracking and make the vision clear. Also slowing down the growth rate of the eye axis and the progression of myopia at the same time.
Lenses Material:Hard Resin/Polycarbonate/Arcylic/MR8/MR7/MR174 
Lenses Color: Clear
Abbe Value: 38(ND-1.56),32(ND-1.59)
Diameter: 50/55/60/65/70/75/80mm
Coating: HMC,SHMC
Logo:  Accept fog mark and laser mark on the lenses
Packing Envelope: White and Color customized envelope