Optical specifications are utilized throughout the design and manufacturing of Timeless Eyeglasses to characterize how well it meets certain performance requirements such as luminous transmittance and Anti-reflection luminous reflectance.
The manufacture of Timeless Eyeglasses is in conformity with ISO 12870 standard in terms of testing, inspection, compliance, marking and information labeling.
Wearing this kind of product can make wearer's face look thinner, the larger this product on the bridge of wearer's nose is, the smaller their face seems like.