Be sure to wear qualified glasses.
Many people are eager to buy glasses online without the necessary checks at a proper optical center for glasses. But, in reality, these tests are not only to replace glasses but to take responsibility for the safety of their own eyes. These cheap and inferior glasses will do a lot of harm to most myopic friends. If you wear unqualified glasses, it will cause visual fatigue, headache, dizziness, nausea, and other symptoms, vision loss. Severe cases can lead to amblyopia, strabismus, or other functional impairments.
Does a long-face suit wear transparent glasses?
A long face gives people a sense of being relatively thin, so it is best not to wear a transparent, thin frame, or it will show a longer face. It is best to wear glasses with wider rims and darker colors. Compared with women and men, because the overall image of the difference is relatively large, in the selection of glasses, it is best to foil the characteristics of the face and highlight the overall contour of the face. At the same time, the man with a lighter skin color can choose a lighter color frame like the tortoiseshell gold silver frame. People with dark skin color can choose a heavier color frame, like red, black, and so on.
How to know your face shape to choose glasses?
To determine your face shape and spectacle styles that will look best on you, pull your hair away from your face and look directly into a mirror. Look closely at your face and head. You need to measure your forehead width, cheekbone width, jawline width and face length.
After measuring, you need to consider your facial features. There are a few characteristics tied to specific face shapes. For example, a rounder jawline is typically tied to a rounder face shape, a pointed chin is closely related to a heart-shaped face. And you need to take note of the angles and contours of your face to see they are soft or sharp or pronounced or not.
Then you can check whether you have a round shape face, squared face or others.
Round face shape: the forehead round at the hairline; the width of your face is the same as the length; the jawline round with very subtle angles, and the length of your face is the same as the width.
Square face shape: the hairline follows a straight line; there are minimal curves to your cheekbones; you would have a strong and squared jawline.
Diamond face shape: the width of your face is smaller than the width of your cheekbones; the cheekbones significantly wider than your forehead and jawline; you may have a narrow chin area; the length of your face is the same as the width.
There are also other face shapes. You can click here to know more.
Anti-fouling Coating
The lens coated with anti-reflection film is pretty prone to stain, and the stain will affect the transmittance of the lens. Microscopically, the anti-reflection film shows a porous structure, therefore, the oil is very easy to soak in it. The solution is to coat a layer of anti-fouling film with anti-oil performance on anti-reflection film. The film is very thin and will not change the optical performance of the anti-fouling film. The material is mainly fluoride. There are two processes, one is the immersion method, one is the vacuum coating method (the most commonly used).
The superior properties of titanium glasses
They are light, around 40% of stainless steel. The hardness is high, about twice that of stainless steel and common steel, twice that of iron, and six times that of aluminum. In a world of ultra-low temperatures, titanium becomes harder and more superconductive, while steel becomes weaker and less capable. They have corrosion resistance, with no rust. Titanium does not rust in the sea for five years, while steel corrodes and deteriorates in seawater. The thermal conductivity of titanium is about the same as that of stainless steel. They are non-allergic materials. Titanium is a harmless material to the human body. More because it does not have an allergic reaction to the human body, it is one of the few metal materials used in medical science.
JCPenney Optical
JCPenney Optical is your one-stop-shop for all of your family's eyewear needs. Whether you need an eye exam, sunglasses, contact lenses, or a set of great frames, you'll find frames, prescription lenses, sunglasses, and contact lenses from fashion designers and trusted brands at low prices.
What is an MR lens?
MR is the brand name of optical lens raw materials produced by Mitsui Chemicals in Japan. MR series is available in three different refractive indices (1.60, 1.67, 1.74): MR-7, MR-8, MR-10, and MR-174. MR-7 and MR-10 have higher thermal deformation temperature and excellent dyeing, which are widely used in the field of sunglasses. MR-8 has the most balanced performance index and is suitable for the production of lenses of any strength. It has the highest market share in lens materials with a refractive index of 1.60. MR-174 is a high refractive index lens material, which is mainly used in the production of ultra-thin lenses.
