Choosing the optical lens material suitable for the elderly requires comprehensive consideration of the elderly’s eye needs, physical conditions and living habits. The following is a specific...
Single optical glasses
Single-lens optical glasses are mainly used to correct vision, so that the wearer can see clearly. To a certain extent, it can help myopia patients to maintain clear vision w...
What is cellulose acetate?
Cellulose acetate refers to a thermoplastic resin obtained by esterification with acetic acid as a solvent and acetic anhydride as an acetylating agent under the action o...
eyeglass
Optical property
Clarity: Quality sunglasses lenses at any Angle to see the object should be clear, no deformation, no double shadow. You can rotate the lens slightly by observing distant ...
Material aspect
Look at the material composition: high-quality metal spectacle frames often use titanium alloy, pure titanium, etc., with light weight, high strength, corrosion resistance, anti-all...
What is the difference between resin lens and pc lens, which is good?
Resin lens and PC lens as the two mainstream materials of modern eyeglass lenses, each has its own unique characteristics and a...
