The process of selecting the right prescription glasses can be challenging. Generally, the optometrist will provide input on the medical element depending on your eye condition. You will need to evaluate different products and compare factors such as the frame style and the material used to fabricate the glasses. These simple considerations can affect the appropriateness of your eyewear for long-term use. One of the critical aspects that you can easily overlook is the type of lens coating treatment used on the glasses. This will affect the comfort, appearance and durability of the chosen product. Here are the primary types of coatings that you should consider choosing for your spectacles.
Modern eyewear lenses are made from lightweight materials such as plastic, high-index plastic and polycarbonate. These are favourable for purchase because they do not break as easily as the glass alternatives. Unfortunately, these lenses have soft surfaces which are susceptible to damage by scratches and general abrasions. These can lower the performance of the eyewear by reducing visibility. It is important to choose spectacles with an anti-scratch treatment to reduce the risk of this type of damage. The coating is present in most modern eyewear, but you should inquire about lenses with an anti-scratch guarantee or warranty.
As implied, an anti-reflective coating is designed to reduce the reflection of light by the lenses. This will improve the performance of your glasses significantly and enhance your comfort. In simple terms, reflective lens can throw back light or show mirror images from both sides. The effect will reduce the contrast and clarity through the glasses which can reduce your comfort. Moreover, people will be easily distracted by the images formed on your glasses when looking at you. The anti-reflective coating will make the lens virtually invisible and mitigate these problems by eliminating the reflections. Moreover, you will not have glare spots on your face when the flash is used in photography.
Lenses with photochromic treatment are designed to respond to solar ultraviolet rays and high-energy visible light. Basically, when these lenses are exposed to the outdoor sunlight, they will darken automatically, protecting your eyes from harsh light. When you go indoors in subdued light, the lenses will clear to allow you to see comfortably. This treatment is ideal for your spectacles if you are sensitive to light but dislike dark sunglasses. The photochromic lenses will also protect you and will shield you from the effects of UV radiations. This will reduce susceptibility to cataracts and macular degeneration.