50 Vs 80 Tint Sunglasses | KOALAEYE OPTICAL

50 Vs 80 Tint Sunglasses

Driving Glasses - Dashall

Dashall opened an official flagship store on the Internet so that the majority of Internet users can buy the same type of goods online as in physical stores. Since its inception, it is deeply loved by the majority of users. Since the establishment of the Dashall brand, they have been working hard to treat users with high-quality products and better service. At present, the main products of Dashall are anti-glare glasses, reflective color film, glasses chain, anti-blue light goggles, sunglasses, polarized lens, sunglasses, driving glasses, glass frame, etc.


Gunnar Intercept blue light blocking glasses

The company is committed to improving people's visual experience when watching digital devices like computers, laptops, smartphones, pads, etc so that the wearers will no longer be affected by harmful light like short-wave blue light and glare refracting from these digital screens. They are continuously pursuing better protection of human eyes. Gunnar Intercept anti-blue light glasses filter or block harmful blue light from screens like computers. They relax eye muscles, soothe eye fatigue, prevent eye dryness, maintain constant moisture, and increase visual clarity.



NIGHT - LITE ® NIGHT DRIVING GLASSES

The glasses allow you to see clearly without straining your eyes to ensure safe driving. They can eliminate strong reflected light, reduce glare, and distracting from reflection. They can filter out high-intensity glare from oncoming traffic, street lights, and billboards while improving visual acuity for night driving. They give you more control over the steering wheel and better visibility, thus reducing the stress of driving. They can relieve pressure on the eyes. Eye strain can be prevented by eliminating light entering the eye.


Can clear lenses be polarized?

At present, there are no clear polarized lenses. A polarized lens is a thin film vertically arranged with silicon crystal coating placed inside the lens, just like a shutter, which covers the parallel light and only allows the vertical light to pass through. In this way, the glare from all directions can be eliminated, so it is clear and comfortable to wear. Transparent polyamide, the material of nylon lens, is a new variety of polyamide. The material of the nylon lens is mainly transparent polyamide. Due to the effect of the light filter, only light from a specific direction is allowed to pass through the lens, which filters the dazzling light from the sun on the water, land, or snow very well. It can not only make the landscape soft, clear, and natural but protect the eyes to a certain extent.



Benefits of wearing blue light blocking glasses

  1. Use blue light blocking glasses to relieve eye discomfort.

Excessive use of the device can cause computer vision syndrome or digital eye fatigue. Glasses with blue light filtering technology can enhance your concentration and reduce eye fatigue, thereby making your eyes feel less tired and improving work efficiency. Another way to reduce eye strain is to ensure that you stay away from the screen regularly.

  1. Sleep better with blue light blocking glasses

One of the more surprising effects of touching the screen is that it may have a negative effect on sleep patterns. Blue light has a high energy frequency, which can increase alertness and delay the body's release of melatonin, which helps induce sleep. Generally speaking, we should all avoid using Blu-ray devices one to two hours before going to bed. Anti-blue light glasses can reduce the impact of blue light, allowing you to use your device before going to bed and still have a good night's sleep. However, the best option is to put down the screen before going to bed.

  1. Reduce the possibility of AMD

Age-related macular degeneration (AMD) is the main cause of blindness. Anti-blue light lenses can help avoid or delay this situation by preventing blue light from affecting your eyes.

Computers, TVs, mobile phones, and tablets all emit blue light. Even with long-term exposure, the blue light emitted by these devices may not be enough to cause damage to the eyes or vision. However, further research is needed to confirm whether the blue light emitted from these devices is harmful. Experts are also uncertain whether blue light glasses can help symptoms associated with increased screen exposure. Ophthalmologists suggest that eye fatigue, headaches, and lack of sleep may be related to computer vision syndrome, rather than blue light exposure. For eye health, wearing blue light blocking glasses is not enough, we still have to develop good eye habits.


How to test a blue-light lens?

Blue-light-blocking lenses are now focused on refractive indices of 1.56 and 1.60. If you buy lenses that are not of either refractive index, be wary. Of course, with the development of technology, now some brands have produced 1.71 refractive indexes blue-light-blocking lenses, suitable for people with high myopia to wear. The true lens package should at least have the product name, refractive index, dispersion coefficient, transmittance, color, SPH, CYL, and other indicators. These indicators are perfect, can be treated as the reference basis of the formal product. In addition, you can go to a professional optical shop or testing institutions for testing.


Prix de venteA partir de
Prix de venteA partir de


The Price of Progressive Lens

On both sides of the lens of the progressive lens, some places are deformed, which makes the image blurred. In addition, it has a narrow field of view in the near and middle distances. The narrow focus point for a long time can easily make the eyes tired. It is suitable for the alternate vision of far, middle, and near. Under normal circumstances, the price of the progressive lens is different from the purchase merchant, region, brand, and quality, but the price of the progressive lens on the official website is between 30-85 US dollars. Of course, some products will be less than $30, or more than $85.

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