How to buy contact lenses online?
Choose a standard retailer. Contact lenses belong to three types of medical device products, and the sale of contact lenses and their care solution belongs to medical behavior. No matter it is an optical shop or contact lens e-commerce website, it must have a Medical Device Trading Permit before it can be sold. The trend of buying contact lenses online is obvious, and there are a lot of websites of individuals and contact lenses that do not have business licenses. Therefore when the user buys a contact lens on the net, be sure to look for management qualification of Medical Device Trading Permit, guard against being cheated.
The Advantages of Polycarbonate Glasses
In fact, polycarbonate glasses come with several benefits and this section will show some of them.
First, polycarbonate glasses are safe and are virtually unbreakable. A study found that polycarbonate glasses were more impact-resistance than glasses or other types of plastic lenses.
Second, polycarbonate glasses are thinner than other types of lenses. This feature makes them ideal for people who have strong prescriptions. Lighter and thinner eyeglasses are less likely to slip off your nose and are more comfortable for everyday wear.
Third, extended exposure to UV radiation from the sun can cause damage to your eyes and lead to some eye conditions such as cataracts or macular degeneration. Of course, polycarbonate glasses can block out harmful UV rays from the sun and provide good protection for your eyes.
However, there are some negative voices of polycarbonate lenses.
America's Best
America's Best is part of National Vision, one of the largest and fastest-growing eyewear retailers in the United States. It has more than 800 stores in 31 states and the District of Columbia and is adding more stores every year. The mission is to provide the best value for quality eye care and glasses at a low price that America deserves. All divisions of the company are committed to delivering this commitment to customers. Prices are usually lower than those of their competitors. They provide an extensive collection of designer eyewear frames like Ray-Ban. Due to bulk purchasing power, they can provide favorable price designer brand glasses. Each store is equipped with state-of-the-art optometry equipment to ensure customers receive the best eye care. They use cutting-edge manufacturing technology to provide customers with the highest quality products at the lowest price in the shortest time.
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.
Orthokeratology lens
Orthokeratology lenses appeared in the United States in the 1960s and became mature in the 1980s. In 1996, Taiwan first imported the product, and it entered mainland China the following year. It is called OK lens for short because of its pronunciation. After OK lens entered China, it was immediately found by businessmen. A lot of institutions and individuals who do not have the relevant qualifications have flooded into the operation of the OK lens. On July 5, 2001, the State Food and Drug Administration formulated the Regulations on the Supervision and Administration of the Operation, Inspection and Matching of Orthokeratology Lens, which regulated the operating institutions and testing and matching institutions of Orthokeratology lenses. But in China, the rule did not change the course of events.
The Pros of Progressive Lenses
In this section, we will show you the benefits of progressive lenses.
One of the major advantages of progressive lenses is that the design of progressive lenses blends the prescription. There is no image jump or visible line on the lens. This enhances your comfort with your lenses and can be safer when performing tasks such as driving.
With progressive lenses, you don’t have to switch other glasses frequently. Progressive lenses correct distance, intermediate, and reading vision within one lens. So, it can bring you great convenience.
Are rimless glasses in style 2022?
Now the glasses design concept changes with each passing day. The glasses are more and more in line with the aesthetic requirements of modern people, adding style and elegant demeanor to your clothing collocation. Rimless frames are not obvious either in appearance or weight, relieving some of the distress caused by myopia. Rimless glasses not only give you a wider view, but reduce overall weight, and have become a favorite of many fashion trendsetters. Are these rimless glasses your style?
