Identify The Quality Of Sunglasses

First look at the appearance of the glasses
1. Electroplating, paint coating, plate surface polishing and other surface colors are uniform, without obvious blemishes, spots and scratches.
2. The printing, laser and engraving strokes on lenses and temples are clear and smooth, easy to identify and not easy to fall off.
3. The color of the lens is correct, no chromatic aberration, scratches and bubbles, the color of the progressive film is too natural, and the color of the left and right lenses is symmetrical.
4. The feet holding the glasses are facing the fluorescent lamp, so that the reflective strip on the mirror surface moves smoothly, and the shadow of the fluorescent lamp will not appear wavy or twisted, indicating that the lens has no stress.

Look at the packaging and origin description
Good glasses have complete packaging, tags or instructions. The tags, product codes and instructions contain product descriptions, industry quality standards and detailed dealer or manufacturer contact information.

Last Try
Good glasses have clear and real vision, are comfortable to wear, and do not press on the bridge of the nose, temples, or ears. Fine workmanship, smooth and delicate feel, smooth and natural lines.