Benefits of MR Lenses
It is made of MR series material of Mitsui Chemical, Japan. The biggest advantage is that it is both thin and has good optical properties. Besides, the material has good impact resistance and toughness, so it is not easy to be deformed or broken. Wearing such lenses not only looks more beautiful, but clear and comfortable, and safe at ease. Using a lower density polyurethane material, the lens is lighter and thinner, making it more comfortable to wear. The higher machining success rate increases the processing efficiency and reduces the processing cost. The film compatibility and dyeing properties of MR™ are better than those of ordinary materials, which can improve the quality of functional lenses like photochromic lenses and myopic sunglasses. MR-8™ combines high refractive index, high Abbe number (for better imaging), and better processing performance, suitable for rimless, half-frame, and other glasses, which are less broken and safer. MR-7™ provides better dyeing performance, faster and more uniform color application, and can be used for myopic sunglasses. MR-8 Plus™ is safer and further improves the impact resistance of the lens while maintaining the high Abbe number of MR materials.
Suggestions for Using Varifocal Glasses
If it is difficult for you to get used to the new varifocal glasses, here are some suggestions for you.
1. Wear the varifocal glasses consistently so as to let your brain learn how to use them.
2. The most common accident is tripping when getting used to new varifocal glasses. So, you can mix up your routine to keep your brain active and prevent you from tripping up.
You can also ask those who wear varifocal glasses to give you some advice.
What are night driving glasses?
Night driving glasses are usually non-prescription glasses with yellow lenses and can be bought in many optical stores or online. Lenses range in color from light yellow to amber, and some night driving glasses have an anti-reflective coating. The yellow night driving glasses have been manufactured and sold for decades. They were originally sold to hunters as shooting glasses because they gave birds a sharper contrast to the sky on overcast or overcast days.
Choose a quality progressive lens.
Superior progressive lenses provide a better viewing experience. They also remove any distortions you might feel when reading what's in front of you. Lenses can also be coated with special coatings. Anti-reflective coating can prevent glare on the road, and anti-scratch coating can reduce wear marks.
Can men wear clear frame glasses?
Clear frames are suitable for young men and women, handsome, with personalities. But if older people wear it, they will look old. Clear glasses frame is more stylish with personality, and it is very fashionable but not for everyone. Choose this kind of frame, you should consider the age, face shape, and so on. Clear frames are usually more suitable for younger people because they are younger and more handsome.
How to know if lens is polarized?
Make use of LCD screens. Point the glasses horizontally at the LCD screen and then rotate them upward by 45 degrees clockwise. If it is a polarized lens, it will show a change in color deepening. If it does not change no matter how you rotate it, it is not a polarized lens. You can borrow another person's polarized lens or have previously worn a known true polarizer, and place it crossover with the new glasses you want to buy. At this time, you should see the object clearly from the crossover part with your eyes. Then cross the glasses vertically and horizontally, and at this point, the opposite object should not be visible from the intersection. If this condition is satisfied, it means that a true polarized lens is being tested.
Advantages of progressive lenses
1. The appearance of the lens is like a single vision lens, and the dividing line of the degree change cannot be seen. Not only is the appearance beautiful, but more importantly, it protects the age privacy of the wearer. There is no need to worry about leaking the age secret due to wearing glasses.(https://www.koalaeye.com/collections/progressive-glasses)
2. Since the change of lens power is gradual, there will be no image jump. It is comfortable to wear and easy to adapt.
3. Because the degree is gradual, the replacement of the adjustment effect is gradually increased according to the shortening of the short distance. There is no adjustment fluctuation, and it is not easy to cause visual fatigue.
4. Clear vision can be obtained at all distances in the visual range. A pair of glasses meet the use of long-distance, near use, and various distances in between. It is especially good for teachers, doctors, music workers, and computer operators because these people not only need to see far and near objects clearly, but most of the time they also need to be able to see objects at intermediate distances such as blackboards, piano scores, and computer screens. This is not possible with lenses other than progressive lenses.
5. At present, both internal and external ophthalmologists agree that young people should wear low-degree convex lenses when reading and writing to reduce near-use adjustment, thereby alleviating or preventing the occurrence and development of myopia. This gives the progressive multifocal lens a new meaning and mission. Physiology found that excessive use of the eyeball adjustment function can form 'accommodative spasm' or pseudo myopia. Continued development can produce longitudinal eye axis elongation and induce 'true myopia' or axial myopia. The external luminosity of the progressive lens can be artificially added to the progressive luminosity. The upper is used for looking far, and the below is used for looking near, which makes the eyeball relax and over-adjust. The ever-changing luminosity of the lens replaces the 'accommodative power' that should have been activated, blocking the vicious circle of adjusting the eye axis elongation, making the eye not easy to fatigue, and slowing the development of myopia.
