Aspheric lenses are different from spherical lenses.
Spherical lenses: The higher the strength of spherical lenses, the worse the visual experience, because the spherical lenses do not eliminate aberrations. Aspheric lens: it can greatly reduce the deformation of things and make people see more clearly and vividly. Besides, the eyes are not easy to get tired and the appearance is beautiful. It reduces the aberration of the lens and ensures a clearer field of vision.
When the parameters of the lens are normal, the optical center of the myopic lens is the clearest, and the peripheral part of the lens will be slightly deformed. So now the lens is designed with an aspheric surface. Under normal circumstances, the mainstream aspheric lens in the market has a reduced edge design, which is about 5 to degrees lower. The opposite edge of a spherical lens is higher.
Accurate optometry is key.
Optometry before wearing glasses is very key. Children's optometry should choose mydriasis optometry. Mydriasis optometry is a method of optometry designed specifically for children. It works by using drugs to completely paralyze the ciliary muscle of the eye so that it loses its regulatory role. So you can check out the child is true myopia or pseudomyopia. During optometry, you should pay attention to let the child as far as possible to relax, so as not to affect the effect of optometry. For the sake of children's health, it is recommended that parents and friends can take their children to a professional optometry place to choose glasses. In addition, do not rely solely on optometry to determine the child's glasses, but to see which degrees are more suitable.
The warranty service
It starts public services. The repair lab has repaired more than 90 percent of glasses with broken frames.They provide all types of repairs, like plastic repair, metal repair, and lens replacement, no matter what the work is done. They still provide you a 60-day warranty for eyewear repair. The repaired area is ensured to protect you if damage occurs.
Blue light and anti-reflective lenses
They reduce the potential for cumulative damage to the eyes.Allowing the beneficial blue light through improves clarity, they reduce glare and reflection. They can improve your visuals and reduces eye strain and nighttime reflexes. They can reduce the symptoms of computer vision syndrome, including eye strain, eye strain, and headache.
How to wear clear frames with style?
A square face is all about softening the lines of the face, so it works well with round frames. The person with a long face should choose a bit bigger frame. It can make the proportion of the face-up and down more harmonious. The oval face is the standard face shape, and any frame is suitable. People with round faces are similar to those with square faces. If you have a round face, you can choose a square frame instead of a round frame, which will only make your face look rounder. The most important feature of a diamond face is high cheekbones, so choose a thick frame to visually weaken the cheekbones. For the triangular face, people can choose the frame of a half-frame design. Since the upper part of the face will be smaller in this shape, a half-frame design is necessary to balance the proportions.
Commercial pure titanium eyeglass frame
Commercial pure titanium eyeglass frame gives people a professional, handsome, rigorous attitude. The commercially pure titanium eyeglass frame is generally square, with a simple design. And the style is more versatile, making people a cool and handsome feeling. It is men's preferred choice! And for the display of their professional image, they play a great role!
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.