Qualified Optical Shop
Qualified opticians are determined not to sell substandard glasses. It is not recommended to keep the lens frames unless the same type can be found. If not, customers will be told directly that the data is likely to change. Optical shops using imported edge grinding machines can better ensure the accuracy of the data of the glasses. The processing engineer must pass a strict examination before he will process glasses for customers. And each pair of glasses needs another person to check, and then pass to the customer to wear. When customers take glasses, they should be informed of the correct steps for cleaning glasses.
Allen OTG Safety & Shooting Glasses
Chemistry LABS and carpentry aren't the only applications that need safety goggles on top of glasses.These Allen OTG glasses work better on indoor shooting ranges. You can use these comfortable safety glasses to better focus your front view. Unlike the other OTG safety glasses on the list, these glasses lie flat on the side of your head and are specially designed to fit comfortably under the earmuffs without breaking the noise seal.
What are browline frames?
The name browline comes from the design of the frame. The upper part of the frame is thicker than the lower part so that the wearer's natural eyebrow line can be noticed. The top is usually made of acetate or plastic, and the bottom of the lens is wrapped with a thinner wireframe. Later, the browline frames have also been modified to meet the needs of more customers. Some browline frames use nylon wire instead of metal wire in the lower part, while the browline frames with metal wire are more durable and stable. If people with high myopia want to have a pair of half-rim glasses, browline frames are a good choice.
What is blue light?
Our daily lives are inseparable from mobile phones, computers, tablet computers, and other electronic products. Many people's eyesight is also going downhill due to long-term exposure to strong light electronic screens, and their eyes are more or less potentially adversely affected. It is found that many optical stores sell blue light filter glasses, which have the function of blocking 99.9% UV and scattered blue light, alleviating visual fatigue. They claim that these glasses can block short-wave blue light emitted by electronic products such as mobile phones and computers, and even prevent age-related macular degeneration so they are much sought after by consumers. The price of these so-called anti-blue-light glasses varies greatly, ranging from dozens of dollars to several thousand dollars. Do these blue light blocking glasses really have so many magical functions?
The natural light seen by the human eye is composed of a spectrum of different colors, including red light, orange light, yellow light, green light, blue light, indigo light, purple light, which gives people a visual feeling of white. Different wavelengths present different colors visually, and the shorter the wavelength, the higher the energy. At present, products with electronic screens such as computers and mobile phones use LEDs and other materials to emit light mainly in three colors of red, green, and blue, and blue light accounts for the main part. Blue light belongs to the range of visible light, belongs to short waves. And the wavelength is between 400 nanometers and 500 nanometers, which is close to ultraviolet and carries a large amount of energy. And this part from 400 nanometers to 450 nanometers is called high-energy short-wave blue light.
How To Choose Better Night Driving Glasses?
Choose and buy glasses to use a special night with anti - strong night driving lens. The demand is to block 80-90% of the strong lights and harmful lights, and at the same time to make the road more clearly. Choose glasses with thicker lenses, they are more durable and protect the eyes of drivers against irritation and accidental breakage. As common sunglasses and color-changing glasses are only suitable for daytime wear, wearing them at night will seriously affect the driver's vision.
Common light yellow night driving glasses can only block a small amount of light, and is not very suitable for night driving glasses standards. Therefore, in the choice of lenses of night driving glasses, we must do the selection and demonstration of the national authority of the formal institutions to test products, to achieve the desired effect in actual use. Don't buy products that are not up to standards from vendors. Such products not only do not block the lights but may affect the driver to see the road ahead, affecting the safety of the train operation.
The Customization of Glasses
For the first time, you must go to a professional medical institution for medical optometry. Before the age of 12, you should dilate mydriasis and optometry. After the age of 12, you should decide whether to dilate mydriasis and optometry according to the specific situation of the eyes. The lens must be smooth, transparent, without bubbles and particles, with a uniform texture. The hanging ear of the temple should be attached to the outline of the outer ear, and the tightness should be moderate, so as not to slip.
Different Types of Progressive Lenses
Premium progressive lenses are designed to provide a wider and smoother view. These lenses are highly customizable for your prescription, chosen frame and eye anatomy.
Premium progressive lenses can incorporate your dominant eye into the design and make transitioning between different prescriptions feel smoother as well. However, due to these features, premium progressive lenses are more expensive than traditional lenses.