Seven Things That You Never Expect On Prescription Eyeglasses For Sports | KOALAEYE OPTICAL

Seven Things That You Never Expect On Prescription Eyeglasses For Sports

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What does vision insurance cover?

Vision insurance and vision benefit plans usually cover the cost of annual eye exams, prescription glasses, and/or contact lenses. Vision insurance includes traditional health/medical policies and health/discount plans that provide vision benefits and cover most. Coverage will vary depending on the type of vision insurance or vision benefit plan you choose. Group vision insurance is usually provided through an employer, an organization, or a government plan like Medicare or Medicaid. If you don't qualify for any of these options, you can purchase a personal vision care plan from a vision insurance provider.


Why choose an acetate frame?

(1) Lightweight and comfort

As one of the daily necessities, the lightweight acetate frame will not bring a heavy burden to the bridge of the nose. Even if you need to wear glasses all day, you will not feel too much discomfort.

(2) Durability

This is the key factor that makes acetate frames stand out from traditional plastics or other materials. Acetate frames are made by cutting, molding and polishing multiple pieces of material, which makes them as strong as metal and ideal for eyeglass frames.

(3) Various design

The cellulose acetate spectacle frame design is the most fashionable. The surface layer of the traditional plastic frame is usually sprayed with colors and patterns. It may have a nice design or color. But because it is the only surface, daily use will cause its surface color and pattern to fade. After a year or even a few months, their appearance may not be as good as before. Unlike plastic spectacle frames, acetate makes the design easier to retain. The acetate fiber sheet can be designed with colorful patterns, different layers, and many colors. The embedded design can maintain its characteristics more effectively without spraying or painting.

Acetate is comfortable, weight-light and fashionable, and meets all your needs. Therefore, it can be said to be the best material for making spectacle frames. Therefore, the next time you decide to buy a new spectacle frame, please consider using a spectacle frame made of acetate.



How can I measure the frame size?

Use a ruler to measure the glasses you used to wear comfortably and record the width of the frame and the total width in front of the frame. And compared with the frame width of the selected frame and the total front width of the frame. Frame width size difference of one or two millimeters does not matter, and the total front width of four millimeters does not matter. You can use a ruler to measure the approximate distance between the temples. Usually, the width of the inner side of the frame is the same as the temple value or about 3MM larger than the temple value.


The characteristics are different.

Cellulose acetate materials have high wear resistance, and hardness and texture are very good. The sunglasses are made of acetate fiber plate with plate cutting and processing. The main materials are plate and plate plus steel sheets. The characteristics of the plate are that they are not heavy. It has a hardness, good gloss, and steel combined to strengthen the firm performance. And they have a beautiful style, not easy to deform and change color, durable. The plated one deduces fashion, easy-to-match clothes, and integrates the thickness of the plate and the texture of the metal, reflecting the personality style.

The chemical name of the CP material is propionic acid fiber, cellulose molecules for the hydroxyl propionic acid in the polymer. It has good weather resistance and low-temperature resistance. The current market of this material is mainly used in glasses, toys, and a variety of shells. It is one of the acrylic resin derivatives. The material is a large sheet and can be dyed in a variety of colors.



Bifocal Lens

Bifocal lenses have two observation areas separated by visible lines, a larger observation distance area, and a smaller reading area. It may take some time for people who are wearing bifocal glasses for the first time to get used to the lenses. This is mainly due to learning how to move the eyes between the observation distance area and the reading area. Some people will also find that there will be an 'image jump' phenomenon at the visible line between the distance and the reading area, especially for those with limited mobility, who must look down when walking. The best way to get used to bifocals is to wear them as much as possible.


What Are High Index Lenses?

High index lenses are eyeglasses lenses that are designed to be thinner and lighter than regular lenses. High-index lenses have a high refractive index than their conventional counterparts. High index lenses are recommended for people who have significantly high refractive errors and strong prescriptions for nearsightedness, farsightedness or astigmatism.

High index lenses are thinner, lighter and more appealing than standard lenses, but they come in several different indexes such as 1.67 high index lenses and 1.74 high index lenses. In this post, we will focus on the 1.67 high index lenses and 1.74 high index lenses.


Precio de ventaDesde
Precio de ventaDesde


Choose blue light blocking glasses with guaranteed quality.

Because blue glasses is a kind of special care, which requires quality assurance. Wearing the unqualified glasses for a long time not only failed to protect his eyes against the blue glasses but can also lead to decreased vision. In severe cases, physical disorders can occur, causing dizziness, headache, and so on. So choose a big brand, guaranteed blue light blocking glasses, which can truly protect your eyes.

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