Which Sunglasses Are The Best Quality? | KOALAEYE OPTICAL

Which Sunglasses Are The Best Quality?

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Advantages Of Acetate Frames

  • Firmness and good gloss. The style is beautiful. It is not easy to be deformed and discolored, and it is durable.
  • It is not easy to be corroded by the sweat of the skin and other irritants, and it will not be discolored by ultraviolet radiation.
  • Diverse styles, various colors, suitable for many types of people, and easy to match clothes.


Loch Eyewear

Loch Eyewear, a Canadian company, makes prescription glasses and sunglasses from 500-year-old North American wood and plant-based plastic frames. Their glasses are made in Canada and feature high definition, durable, anti-glare polycarbonate lenses. Loch Eyewear provides a home trial program that allows customers to try three frames at home for three days with free shipping in both directions. If you like a pair of glasses, they'll put the lenses inside them and send them back to you.



Benefits of Blue Light Glasses

In this section, we will show you the benefits of blue light glasses.

  1. Relieve eye discomfort with blue-light blocking glasses. Excess device usage can lead to computer vision syndrome or digital eye strain. Blue light glasses can enhance your focus and reduce eye strain, resulting in making your eyes feel less tired and improving productivity. Another way to reduce eye strain is to make sure you take regular breaks from the screen.
  2. Blue light glasses can affect your sleep. Blue light has a high energy frequency that can increase alertness and delay the body’s release of melatonin, which helps induce sleep. In general, you had better not use blue light devices one to two hours before sleep. Blue light glasses can reduce the impact of blue light, enabling you to use your devices before bed and still get a good sleep.
  3. Blue light glass can help reduce the likelihood of Age-Related Macular Degeneration. AMD is a leading cause of blindness. Blue light blocking lenses can help avoid or delay this condition by preventing blue light from impacting your eyes.

Of course, besides those benefits, there are some other benefits of blue light glasses. For example, blue light glasses can relieve headaches.


What are the benefits of recycling old glasses?

Recycling old glasses contributes to sustainability and reduces waste. It is a way to give charity in addition to giving money. It can be able to teach children the importance and impact of philanthropy.



The Customization of Glasses

For the first time, you must go to a professional medical institution for medical optometry. Before the age of 12, you should dilate mydriasis and optometry. After the age of 12, you should decide whether to dilate mydriasis and optometry according to the specific situation of the eyes. The lens must be smooth, transparent, without bubbles and particles, with a uniform texture. The hanging ear of the temple should be attached to the outline of the outer ear, and the tightness should be moderate, so as not to slip.


What are NXT Lenses?

NXT lenses are made of Trivex materials. Trivex (Chinese name: Ethyl Carbamate Polymer) was invented by PPG in 2001.

Impact resistance:

Impact resistance is the main feature of the NXT lens. As a visual armor material originally used in the military field, Trivex has effective impact protection to the eye when it is most demanded. It is 10 times stronger than PC lenses in impact resistance and will last for life under normal use. It is the only explosion-proof safety lens on the market that can withstand external forces and turns.

Patented color injection technology :

Color representation is another important feature of NXT lenses. The biggest defect of the regular lens in dyeing is color aberration. The same color of the lens with different luminosity will produce different effects. The higher the refractive index, the serious the error. NXT lenses are a breakthrough in this respect. The patented color injection technology that infuses the color into the raw material gives the lens a natural color, ensuring that color aberrations are minimized and that they do not fade or change color over time or over long periods of use like other materials.

Abbe number and internal stress:

The Abbe number of NXT lenses made of Trivex is 43~45, which is close to CR39(58) and higher than PC lenses (29~32) and high folding lenses (32~41). At the same time, because the NXT lens is produced by the casting process, there is no stress in the finished lens, which further reduces the rainbow phenomenon, providing a guarantee for the clear visual effect and reducing eye fatigue.

Weight:

The specific gravity of NXT lens is 1.11g/cm3, 16% lighter than CR39 (1.32g/cm3) and 10% lighter than PC tablet (1.22g/cm3). The Trivex 1.53NXT medium-fold lens is so light that it can float.


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Are titanium glasses really more expensive?

Due to its lightweight, corrosion resistance, non-allergic and memory quality, titanium is becoming a new type of glass frame material. But titanium frames are more expensive than other metal, sheet, or plastic frames. Titanium is not a rare metal. It has the fourth-largest reserves after aluminum, iron, and magnesium, and is 16 times more than the world's copper, nickel, leads, and zinc combined. Scarce resources are supposed to have higher prices. With so much titanium in store, why would titanium frames be more expensive than frames made of other materials?

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