Find the right size
The right glasses should sit comfortably on the bridge of the nose, not pressed against the forehead or cheeks. But they don't stay at the tip of the nose for so long that they slip while squinting or wrinkling your nose. The fit of the nose determines the distance between the glasses and the face. A proper fit should allow the lens to be between 14 and 24 millimeters away from the eyes. When you want to find glasses that fit, don't clip, don't slip, and don't lead to discomfort, you have to find out the size you need.
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.
Can I order progressive glasses online?
Glasses belong to the half medical and half business industry, in addition to the price of glasses, frame style, lens quality, there is more need in professional glasses services. The quality will be very different. The refractive index, film layer, light transmittance, and anti-oil resistance of the lenses almost invisible to the naked eye will be very different, so the prices of different brands of glasses are not comparable. There are many considerations when buying progressive glasses online. If the lens is too far away from the eye, people with myopia may not be able to see clearly, and people with hyperopia may have too much diopter. If the distance is too close, the opposite is true. In addition to the accuracy of optometric data, we need to pay attention to the importance of frame to maximize the benefits of the progressive lens.
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.
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.
Type of eyeglasses cloth
There are many kinds of cloth for glasses. There is mainly sheepskin eyewear cloth, and there is microfiber eyewear cloth. There are suede and double-sided cloth and so on. Professional eyewear cloth must use more than 200 grams of weight/per cubic centimeter of microfiber. This kind of raw material chemical fiber is fine, and tactility is soft, so it will not damage the lens. This kind of wipe cloth can be used on a computer screen. The two sides of the cloth are different, and the smooth side is used to scrub the lenses. Because the dirt on the lens is mostly small. The rough side is designed to give you more friction when you touch it with your finger, so you can use it more easily, and you can clean it more.
Common Bifocal Glasses Problems
In this section, we will list some common bifocal glasses problems.
First, it may take a couple of weeks to adjust the bifocal glasses. You may not get used to wearing your bifocal glasses overnight. When you wear the bifocal glasses for the first time, it may be difficult to adapt them.
However, knowing the correct part of the lens to look through is crucial to giving you the vision correction you need, whether it is distance or near vision, for different activities.
To adapt to the bifocal glasses, you had better wear them all day or as often as you can. If you don’t wear your new glasses enough, it can make the adaption period last even longer.
Besides the above bifocal problem, there are other problems with bifocal glasses. The second problem of bifocal glasses could be that the bifocal line is too high and you might lack adequate distance vision. So, the bifocal line could be obvious and it would not be beautiful. However, if you want a pair of glasses without a visible line, you could consider progressive lenses. You will feel older while wearing them, without having to worry about the line through the center of your glasses.
