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What impact does the material of sunglasses have on its function and quality?
Lens material Glass lens Functional advantages: Excellent optical performance, can provide clear and accurate visual effects, high refractive index, can effectively block UV and some glare. Its hardness is high, not easy to scratch, long-term use can still maintain good clarity. Quality disadvant...Read more -
How can I clean and maintain my sunglasses to maintain their UV protection and comfort?
Daily cleaning Remove dust: In daily use, the surface of sunglasses is easily contaminated with dust. You can use a clean and soft glasses cloth or a special microfiber cloth to gently wipe off the dust. When wiping, pay attention to gentle movements to avoid too much force to scratch the lens. C...Read more -
How to determine whether the size of sunglasses is suitable for your face shape?
Round face Style selection: Suitable for the choice of square or rectangular sunglasses, through the angular shape to increase the three-dimensional sense of the face and the sense of line. Avoid round or oval frames that make your face look rounder. Size points: The frame width should be slightl...Read more -
How does the material of sunglasses affect its UV protection effect?
Glass lenses: Ordinary glass itself has a certain UV absorption capacity, but the effect is limited. Some high-quality glass lenses will add special metal oxides or other UV absorbers, which can effectively block UV rays. For example, glass lenses with ingredients such as cerium oxide can absorb ...Read more -
How to choose a pair of effective UV protection and comfortable sunglasses?
Uv protection View the logo: It is preferred to choose sunglasses with a clear UV protection logo, such as “UV400″, which means that the sunglasses can block more than 99% of the ultraviolet light, including UVA and UVB, to provide good protection for the eyes. Understand the material...Read more -
What are the effects of different materials on the refraction and reflection of light?
Glass lens Refraction: The refractive index of glass is high, generally between 1.5-1.9. This makes the glass lens have a strong ability to refract light and can more accurately control the direction of light propagation. In terms of correcting vision, glass lenses can provide a clearer visual ef...Read more -
New color-changing lenses, how to achieve accurate light perception adjustment?
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. When the lens is illuminated by light (especially short-wave light), the silver halide molecules b...Read more -
Does the size of sunglasses affect the wearing experience and protection?
Wearing experience Comfort: If the size of the sunglasses is too large, the glasses are easy to slide, frequent adjustment will bring a lot of inconvenience; If the size is too small, it will cause pressure on the head, resulting in pain at the temples or the bridge of the nose, and it will be un...Read more -
The darker the sunglasses, the better the UV protection?
There is no direct correlation between the shade of sunglasses and the effectiveness of UV protection. The anti-ultraviolet effect of sunglasses mainly depends on the material of the lens and the added anti-ultraviolet coating and other technologies. Qualified sunglasses, regardless of color, as ...Read more -
Who should pay special attention to choosing and wearing sunglasses?
Outdoor enthusiasts: such as mountaineers, cyclists, hikers, golfers, etc., who are exposed to the sun for a long time, and have a high risk of eye damage from ultraviolet rays and glare. Choose polarized sunglasses with high efficiency ultraviolet protection (UV400) that can effectively block gl...Read more -
What kind of contact lens care is the right way?
Before wearing Clean hands: Wash hands thoroughly with a mild, fragrance-free soap or hand sanitizer to ensure they are free of dirt, oil, and bacteria. Pay particular attention to cleaning between your fingers and under your nails, then dry them thoroughly with a clean towel or paper towel. Chec...Read more -
Is wearing contact lenses harmful to your eyes?
Wear properly and care for the condition Breathability and corneal health: Modern contact lens materials in breathability and other aspects have been greatly improved, as long as the choice of qualified quality, good oxygen permeability products, wear time is reasonable, generally will not have a...Read more