What Is The Difference Between Polarized And Tinted Sunglasses?

The working principle of driving glasses

The driving glasses are designed according to the polarized angle and radian of the lens and the principle of precision optics. It can only let the beneficial light pass through, and other light sources, like strong sunlight, car headlights, and other light sources are filtered, to eliminate the interference of external light, and avoid the appearance of eye-catching, dazzling, and other situations. That's basically how the driver glasses are designed.

Eyemart Express

Eyemart Express is founded in 1990. The focus is to get you the right glasses at the right price. Eyemart Express is the only retailer with a lens lab in every store that can produce 90% of its glasses on the same day. There are more than 2,000 frames to choose from, including designer brands and safety glasses. At their online store, you can buy prescription glasses anywhere and have them delivered to your door. You can choose the best glasses at the right price and enjoy same-day service.

Can you wear blue light glasses while driving?

The damage of blue light has a cumulative effect. The longer the exposure time is, the more serious the damage of retinal cells will be, which will eventually lead to irreversible damage of the structure and function of the retina. Once the retina has permanent damage, degeneration will directly affect the metabolism and function of photoreceptor cells, resulting in vision loss. It depends on the glasses you're wearing. The function of anti-blue light glasses depends on the material of the glasses. Some blue light glasses have a special anti-reflective coating, which can reduce glare. These glasses are definitely helpful when driving at night.

What Are Trifocal Glasses?

Trifocal glasses and no-line progressive lenses are multi-focal glasses, meaning that their lenses offer multiple correction fields. Whether you have been wearing multi-focal glasses for a while, or you have just begun to look at options for correcting vision after 40 years old, you may have heard the terms trifocal or progressive glasses.

Trifocal glasses have three different corrective lenses within one lens to offer you intermediate, distance, and near correction. Trifocal lenses look and perform similar to bifocal lenses, with an added viewing zone to help correct vision in the intermediate field, and two visible lines where the viewing zones change.

What Do Trifocal Lenses Do?

Trifocal glasses can provide correction for some eye conditions including presbyopia and cataracts. Presbyopia often occurs in people who are between the age of 40 and 60. People’s eyesight starts to deteriorate and they are unable to focus at near. Wearing trifocal glasses can help correct blurred vision, eye strain, and headaches. The trifocal intraocular lens placed during cataract surgery can also resolve cataracts.

From above, you have learned some information about trifocal lenses. But what are the pros and cons of trifocal lenses? So, in the following section, we will focus on the advantages and disadvantages of trifocal glasses.

GlassesShop

It provides men's glasses with good quality and low price. The existing frames have plastic materials to metal. They provide you with a variety of men's glasses like rectangular glasses and round glasses. The glasses have a classic rectangular shape and design. Made of not heavy and durable high-quality materials, they can adapt to a variety of style preferences. A rectangular shape adds clarity, while sharp lines may complement the soft facial features.

What Are the Disadvantages of High-Index Lenses?

This section will show high index lenses disadvantages.

1. High index lenses are made from a chemical synthetic blend that’s created through a special manufacturing process. So, high index lenses are expensive than regular lenses. In fact, the price may be more than double that of the traditional counterparts.
2. High index lenses can be more brittle than their traditional counterparts and may also be more prone to scrapes and scratches. This can impact their overall durability.
3. High index lenses are more reflective than regular lenses, which can make them less effective for brightly lit work environments, outdoor use and nighttime driving on busy highways.
4. High index lenses have greater potential for distortion, particularly in your peripheral vision because the high index lenses have a higher Abbe value than prescriptions made from standard plastic or glass.