Zenni Optical Oval Glasses
These inexpensive, no-fuss oval glasses come in clear, brown, black, or aqua. Price includes frame and basic prescription lenses, scratch-resistant coating, and UV protection. People with square faces may be best suited to wearing oval glasses. Zenni has a try-on feature where you can upload a photo of yourself so you can see what you look like with the glasses on.
Why are blue light glasses yellow?
The material of the lens makes it turn yellow. If it's just blue and the lens is yellow, that's the material itself. Blue light glasses can weaken blue light entering human eyes. Blue light is mainly produced by mobile phones and computers in life. The blue light on the electronic screen is unchanged, so a film can only be designed on the lens to absorb blue light. This can effectively reduce blue light. The complementary color of blue light is yellow, so the yellowing of the anti-blue lens is normal. The material of an anti-blue light lens can effectively shield the blue light. If the blue light is removed from the white light we usually see, it will show yellow, which is a normal phenomenon.
Note the ratio of the lens to the face.
Usually, the vertical length of the lens of longer glasses can have a visual effect of reducing the proportion of the face. In addition, in the selection of the glasses, you should pay attention to the distance between the end of the eye and the glasses so the best ratio is that the eye is in the middle of the glasses.
Round face with square glasses
A round face is a relatively round type. This type of face looks very round but lacks a little beauty. The biggest feature of a round face is that it is softer, and the contours and features of the face will look gentle. However, it lacks a little tough line, so it is most suitable to choose square glasses for a round face. It can add a little small line to your round face and it will look more beautiful.
Liingo Eyewear
Find the 5 frames you dug. Try it for 5 days. Spend some time with your new frames to see which ones are right for you. With home trials, you can try on up to five pairs at a time. And if that's not enough, with their virtual try-on service, you can try on any frame you want right away. Put all five frames back in the box, tear off the current shipping label to reveal the pre-paid return label.
Progressive multifocal glasses are more powerful.
On the premise of the dual vision correction effect, the progressive lens has more stable and complete functions. They provide lasting clear vision. Because the added value is continuously and slowly increased in the related area, the wearer can get a lasting clear vision from the far place to the near place through the progressive glasses. The appearance is better than that of bifocal and trifocal lenses, and there is no subplate dividing line.
Types of aspheric lenses
There are two types of aspheric lenses: single aspheric surface (single aspheric surface for short, different from the outer aspheric surface and inner aspheric surface) and double aspheric surface (double aspheric surface for short). For the outer aspheric surface, convex is an aspheric surface and concave is a spherical surface. For the inner aspheric surface, a convex surface is a sphere, and a concave surface is an aspheric surface. In addition to correcting aberrations, the double aspheric lens also improves the effective field of vision compared to the single aspheric surface. When people's eyes look through the edge of the lens to see things, like driving when looking at the reflective mirror, it often affects vision because of the large aberration at the edge of the lens. Previous designs of aspheric plates have analyzed a single ray of light passing through the center of the pupil. Wavefront technology controls the entire beam of light passing through the pupil, eliminating high-order aberrations.
