Cleaning and maintenance of titanium sunglasses frames need to pay attention to the following points:
Daily cleaning
Rinse with water: Rinse the frame with running water, which can wash away the su...
Feel with the eye
Clarity: After wearing glasses, under the normal eye distance, such as looking at an eye chart at 5 meters or a book or computer screen at 30-40 centimeters, you should be able to...
Silver halide photochromic change technology: the photosensitizer silver halide (or other photosensitizers such as silver barium, copper halide and chromium halide, etc.) is added to the resin lens...
Effect of refractive index on visual acuity in the aged
Lens thickness
For the elderly with high myopia or farsightedness, it is more appropriate to choose a lens with a high refractive index. The ...
Choose the right sunglasses
Uv protection: To ensure that sunglasses can effectively block ultraviolet light, the label is usually marked with UV400 and other signs, indicating that it can block mo...
Wear sunglasses when traveling, not only for appearance, but also for eye health. Today we’re going to talk about sunglasses.
01 Protect your eyes from the sun
It’s a fine day for a t...
