what kind of glasses should a heart shaped face wear? | KOALAEYE OPTICAL

what kind of glasses should a heart shaped face wear?

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Can I use my prescription for contact lenses?

You cannot and should not use your glasses prescription to calculate your contact lens prescription. It's important to note that not everyone who needs glasses can wear contact lenses, and it's important to check them separately. Some people have sensitive corneas or other eye complications and never get used to wearing contact lenses.


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.



How to buy prescription glasses online

Consumers should choose different styles of frames according to their age and professional characteristics. Because everyone has different face shapes, different interpupillary distances, and different diopters, the size of the frames should vary from person to person.

Lenses are divided into glass lens, resin lens, and PC lens, and you can choose according to your preferences. The glass lens has a stable refractive index, good abrasion resistance, and stable optical performance, but it is relatively heavy and easy to break. Resin lens with high light transmittance is light, safe, and not easy to break, but the surface is easy to wear. PC lens has a high refractive index, but the surface is easy to wear.


How do prism glasses work?

Prism glasses rearrange the images by bending the light and moving the images the eye sees to the desired position. They can align?with what each eye sees, eliminating the double image that the brain interprets. When the images seen by both of your eyes are rearranged, the light is redirected to the right position in the retina of each eye. The brain fuses these two images together to form one clear image.



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.


How to choose frames?

Of course, the best way is to try it on many times. The visual effect is more direct and reliable than trying on. Spend more time and you can find your own style suitable for you.

In addition, where comfort and aesthetics permit, choose the size as large as possible so that the view will be larger. However, there are some optometric parameters that limit the selection of frames. For example, if the pupil distance is very small, choose a size that is too large is not suitable. Try not to choose the product with spray paint on the surface, because durable time is shorter.

You should pay special attention to that TR, plastic steel, stainless steel, wood, β titanium glasses temple may not be adjusted. When trying on, it should be noted that the weight of the lens has not been added to the trying frame, to avoid the problem of discomfort (such as an easy slip of the frame) found after the preparation.


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Pure titanium glasses

Pure titanium refers to a silver-white transition metal material with a titanium purity of more than 89%. The application of pure titanium as a chemical element to spectacle frames is undoubtedly an improvement and sublimation of spectacle materials. Pure titanium has many disadvantages such as high melting point, lightweight, strong corrosion resistance, metallic luster, firm electroplating layer. Also, titanium metal has beneficial physiological effects on the human body. It is an ecological trace element that is non-toxic and non-radiation to the human body. It has the effects of promoting blood circulation, lowering blood pressure, and relieving stress.

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