How to adapt to progressive lenses?
People who are prone to motion sickness or have inner ear diseases may suffer dizziness, nausea, vomiting, and other symptoms due to their inability to tolerate the slight deformation of the visual objects, so they need to pay more attention when wearing them. For people who have not worn reading glasses before, it is not recommended to wear graded multi-focus glasses directly because their eyes will not be able to adapt quickly.
Where to Buy Anti-Reflective Glasses?
From the above, you have learned some benefits of anti-reflective glasses. You may ask where I can buy them. To do that, you can buy them from the local optical store. But now, you can buy them online and it can bring you great convenience.
So, if you want to buy anti-reflective glasses online, Koalaeye Optical is recommended. It provides all kinds of eyeglasses, sunglasses, and frames. What’s more, Koalaeye Optical provides a free shipping service so that the package will be mailed for you with your great convenience.
If you need reading glasses when using a computer, you may want to choose a lower reading glasses power. This is because most people view their screen from a greater distance from their eyes than when they are reading a book or a magazine.
However, if you need reading glasses for looking at something very close or very small, you may need a pair of stronger power glasses.
In most cases, when two reading glasses’ powers seem equally suitable, choose the glasses with the lower power. Picking reading glasses that are too string typically will cause more discomfort problems than reading glasses that are a little too weak.
Different Type of Lenses: How to Choose
High-index lenses: These lenses are thinner and lighter than CR-39 plastic lenses because they have a higher index of refraction and may also have a lower specific gravity.
Trivex lenses: Trivex lenses are made from a newer plastic that’s similar to polycarbonate lenses. They are lightweight thin, and impact-resistant.
Aspheric lenses: Aspheric lenses have various degrees of curvature, which means they can be thinner and flatter so you can use a much larger portion of the surface.
User experience is key.
In the past, the foundation of corporate brands was mainly to provide consumers with satisfying material benefits. However, with the development of mobile applications, the situation has changed. Consumers pay more attention to product experience and product brand.
What progressive spectacle lenses are best?
Essilor is a brand, and it designs, manufactures, and markets a wide range of lens products to help people correct and protect their vision. Essilor adheres to the corporate mission of 'improving vision, improving life', invests 200 million euros in research and development every year, and constantly launches new products to enhance consumers' experience in wearing glasses. Continuous innovation has always been the core gene of Essilor. In 1959, Essilor created the resin lens, and in the same year, it invented the world's first progressive lens. Innovation involves technology, manufacturing, sales, and service. Based on innovation, they can make as many people as possible obtain visual health, and this is the driving force to promote their development.
What is the best lens material?
Crown glass was first used to make lenses. The glass melt was blown into a crown, or hollow sphere, and then reheated in the center of a rapidly rotating plate, which was then unrolled and flattened by centrifugal force. Flat and thin edges are cut into suitable shapes to make window panes. The circular bulge in the middle is the prototype of the lens. The glass material used to make lenses was originally colorless transparent glass with a refractive index of 1.523. Other substances were added to the lens to improve its ability to absorb ultraviolet light.