Green Frame Sunglasses | KOALAEYE OPTICAL

Green Frame Sunglasses

Try to avoid wearing the following glasses.

If you need to wear glasses while driving, you'll need special glasses when driving at night, because common lenses reflect oncoming lights, which produces a faint glare. This will reduce your visibility. It's OK to wear contact lenses while driving. As you get older, your eyes become more sensitive to glare. Ordinary sunglasses or goggles are only suitable for wearing during the day, driving at night will seriously affect the vision (national standards stipulate that light transmittance of night driving glasses must be greater than75%). Although the all-weather driving glasses can weaken the strong lights, the vision darkens and affects road safety which does not meet the national standards for driving glasses at night. You should choose functional driving glasses that can block strong light, glare and increase the field of vision. This can effectively reduce the glare of the car lights but can filter out the extra harmful light. When worn at night, it can soften the strong lights and make the vision clearer. In this way, the safety of drivers is ensured, the fatigue of eyes is alleviated, and the radiation damage of harmful lights to glasses is prevented.


Essilor Lenses

'Seeing the world better' is the goal that Essilor has always pursued, and 'people-oriented, winning with quality' is the basic point of Essilor's business philosophy. Essilor believes that the competition of talents is the foundation of all competitions. Only the personnel with professional ethics and professional ability can a company start from nothing and grow from small to large. The establishment of brand image and recognition by consumers can become a reality. Therefore, Essilor does not aim at a short-term profit, but focuses on the establishment of the company and brand, with long-term market share as the main goal. At the same time, they establish a good relationship with retailers and distributors, so that they can develop together for a long time, and pursue a real 'win-win'.

Essilor’s flagship brands include Varilux, Crizal, Airwear, etc. Varilux myopia lenses are mainly progressive lenses with super high refractive index and high-quality visual field, and the lenses are ultra-light and ultra-thin. Crizal lenses have excellent anti-fouling, abrasion resistance, anti-glare functions, and good light transmittance. Airwear lenses are PC lenses, and their chemical name is polycarbonate, which is a thermoplastic material. PC lenses are extremely tough and will not break (2cm can be used for bullet-proof glass), so they are also called safety lenses, which are currently the lightest materials used for lenses.



Free home trial

They know how important it is to try and touch glasses before buying them. That's why Free home trials are available at Glasses Direct. And it's totally free! They are delivered daily to your home, so every customer gets an unlimited number of home trials, covering hundreds of unique styles, and it's an unmatched experience. At Glasses Direct, they make it easier to help you find your next pair of glasses.


How to Choose Reading Glasses?

Choose big frames the first time. When choosing reading glasses, you can choose the big frames for the first time. You may need larger glasses frames or lenses to really get the sweet spot of where the prescription is.

And if you have never worn glasses for eye conditions such as nearsightedness, farsightedness or astigmatism, it is likely you will be able to see well with non-prescription reading glasses. So, you can buy these non-prescription reading glasses.



How to protect rimless glasses?

With the continuous improvement of people's living standards, many people begin to pay attention to their quality of life. In the past, many people thought that wearing glasses was for correcting eyesight glasses, but now more and more people use them for decoration, and rimless glasses meet the needs of consumers. Because of its light structure, giving people a sense of fashion, so it is loved by many business people. So how do you protect your rimless glasses?


Polycarbonate vs Trivex Lens: Which One Is Better?

We have introduced what the polycarbonate lens and Trivex lens are. What are the differences between the polycarbonate lens and the Trivex lens? So, in this section, we will show you the differences between these two lens materials.

  • Thickness:Polycarbonate glasses are about 10% thinner than Trivex lenses.
  • Weight:Polycarbonate glasses are around 10% heavier than the Trivex lens.
  • Optics - central:Trivex lenses have less internal stress and may produce sharper central vision than polycarbonate lenses.
  • Optics - peripheral:Trivex lenses have a higher Abbe value so they can produce sharper peripheral vision with less chromatic aberration than polycarbonate lenses.
  • Impact resistance:Polycarbonate and Trivex lenses have comparable impact resistance.
  • UV protection:Both polycarbonate and Trivex lenses can block 100 percent of the sun’s harmful UV rays and provide protection for your eyes.
  • Availability:Polycarbonate lenses have a wider variety of lens designs than Trivex lenses.
  • Cost:Trivex lenses are expensive than polycarbonate lenses.

As for Trivex vs polycarbonate, you may have known some information from the above part. You can choose either lens material based on your like when purchasing the glasses.


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How to Tell If Your Progressive Lenses Are Correct?

When you can’t read with your progressive glasses, you can try this way. Hold something you want to read in your hands and lower your look with your eyes. But please note do not move your chin down as you look down. Then look down at something to read but do not lower your chin. Look at something you want to read. Rotate your head to the left and right and right with one eye at a time. If you can read in a rotated position, the reading zone is out of place. If you can’t read at all, the progressive glasses may be wrong.

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