Different Types of Eyeglass Frame Materials
Acetate: The most popular frame material is acetate, also called Zyl. Zyl is a very cost-effective and creative option for eyewear and is extremely lightweight. The acetate frame material is also colorful.
Nylon: This frame material is used in some cheap eyeglasses. Nylon is strong, lightweight and flexible, and it can become brittle with age. Nylon is also a premier material for sports and performance frames, and also easily molded into today’s popular wraparound style.
TR90 Nylon: TR90 Nylon is durable, flexible, and lightweight. Glasses made with TR90 are extremely comfortable since they have a flexible quality. Besides, the TR90 Nylon frame material can bend under pressure and contour your face comfortably. So, it would be resilient to damage.
Ultem: Ultem resin is a flame-retardant and high performance thermoplastic. It comes with various features, such as high strength-to-weight ratio, heat resistance and high impact strength. This frame material is also durable.
Types of Varifocal Lenses
As is well known, there are several types of varifocal lenses. So, in this section, we will list some the types of varifocal lenses.
Standard varifocal lens: standard varifocal lenses are the entry-level varifocal options and are chosen as an enhanced alternative to bifocals. They have clear and fairly wide focal areas for distance, reading, and in between.
Premium varifocal lens: premium varifocal lenses are also called free form varifocals or back surfaced digital varifocal lenses. It offers much clearer vision at all points and is a significant step up from a standard varifocal lens in terms of vision, clarity, focus, and ease of adapting to them. They are created using the latest computer-driven equipment and have a wider field of vision at the distance, intermediate/in-between, and reading focal points.
How Should Glasses Fit?
You should check the placement of the bridge. The bridge is the small middle piece on the front of your frames that sits on your nose. This measurement is usually the middle number displayed on the inside of your temple. The bridge should rest comfortably on your nose without pinching or sliding off. A correctly fit bridge will also ensure your glasses sit properly on your face and your eyes are aligned appropriately within your lenses.
How should glasses fit? You need to consider the size of your lenses, which is essential to the proper function of your prescription, especially with the progressive lenses, because it ensures that there is enough space for the near, intermediate and distance zone powers of your prescription.
Clear glasses can be stylish for children.
Children who wear clear glasses can choose the glasses with good gloss, high hardness, and are not easy to scratch, not easy to wear, durable. Colorful, beautiful, and fashionable glasses show the lovely image of childlike innocence. They had better have the characteristic such as corrosion-resistant, not an easy allergy quality. They are tough enough, colorful, fashionable, and energetic.
Shape memory alloy
It is made up of nickel, titanium, vanadium, and other metals, and has good elasticity. When faced with external force, the temple can bend more than BETA titanium alloy and can be restored to the original state, so it is named shape memory alloy.
Half titanium frame: Usually, it refers to the titanium combination frame, such as metal frame with pure titanium or β titanium conveniently. It can be reversed, and the former is more common.
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.
Thick black frame
During that time, in the memory of every nearsighted person, there is such a pair of black frame glasses. They can be big can be small, and can be square, round. If you wear this kind of glasses, you are the most handsome boy in the whole street. Of course, black-rimmed glasses have their benefits. Many big-name fashion magazines often use them to give stars a concave look during the shoot.
