Why Do Pilots Wear Black Goggles? | KOALAEYE OPTICAL

Why Do Pilots Wear Black Goggles?

Progressive lenses and single vision lenses

Single vision lenses are the most widely used optical lenses and are suitable for the general population.

Progressive lenses are suitable for below people.

① Myopia control lenses for teenagers. Progressive lenses are used to relieve visual fatigue and control the development speed of myopia.

② Anti-fatigue lenses for adults. Progressive lenses are used for teachers, doctors, people who use too much computer at close range to reduce visual fatigue caused by work.

③ Progressive lenses for Middle-aged and elderly people. A pair of glasses for middle-aged and elderly people to easily see near and far.


How To Use Contact Lens Correctly?

A periodic review is necessary. In the process of wearing contact lenses, the eyes may change due to the existence of contact lenses. At the same time, in the process of wearing contact lenses, the lens may be polluted, damaged, and have other changes. This is to check regularly to prevent damage to the eyes. Usually, the recommended review period is one week, one month, three months, half a year, and once every half a year after wearing it.



Online stores have fewer customer service staff and low human resources costs.

Generally speaking, to choose the website shopping, you can directly click on the website, and then get professional customer service reception. The data for each customer visit is accurate. The online stores just need to solve the customer's needs, so the customer service staff is relatively small in numbers, and the human resources investment is relatively small. So the price of glasses will be lower for each customer. Brick-and-mortar stores focus on service. Online shops is involved in the whole network competition, and the entity store is service first. The advantage of physical stores is very obvious,because they can provide perfect service. So the physical store manpower cost will increase.


Eyeglasses String Holder Straps Cord 4 Premium Eyeglass Chains for Men Women

The eyeglasses cord is equipped with a progressive eyeglasses belt ring protection mechanism to completely prevent your eyeglasses from falling. The eyewear strap can be held close to different types of eyewear temples. This cable holder is perfect for small, wide arms. They have an eyewear chain and string with an adjustable design, and an eyewear lanyard comes with a surprise gift. They provide a lifetime warranty, so you can rest assured to buy.



Why do you need rimless glasses?

Traditional full-frame glasses can sometimes make your face look heavy, especially if the lenses are thicker. Rimless glasses can replace heavy frames without weight from the rims. This reduces the pressure on the nose pad, making your face feel lighter and more comfortable.


When were the first glasses invented?

No one knows when the first pair of glasses were invented, but we do know that the grinding techniques for making simple magnifying glasses have been around since 1000 AD, especially in regions where glasses were already produced (including northern Italy). The earliest artwork of glasses appears in the Treviso Cathedral fresco painted by Tommaso de Modena in 1352. There is reliable evidence that eyeglasses were invented in Italy in the late 13th century. The first pair we think of as eyeglasses appeared in Italian pizza in the late 12th century and looked more like two small magnifying glasses (made of raised glass) riveted together at the top of the handle. In 1266, The English Franciscan Monk Roger Bacon wrote about the scientific principles of corrective lenses, but there is no evidence that he applied this knowledge to the manufacture of eyeglasses.


Sale priceFrom
Sale priceFrom


Tortoise Glasses

This unique pattern is the perfect choice for those who want to wear tops and jackets of any color. They fit almost any color. Tortoise glasses come in many colors, and this stylish pattern has a wide palette, so there's no need to worry about skin and hair color. If you want to keep up with current eyewear trends, unique-patterned tortoiseshell glasses are your best bet.

Leave a comment

All comments are moderated before being published.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.