3 Useful Tips to Find the Right Lenses for Your Eyeglasses
The lenses of your eyeglasses decide the comfort level that you experience while wearing it. Even having a stylish and elegant frame is useless if you do not have the right lenses for your eyeglasses.
While there are so many choices available for lenses, you can easily get stuck in the confusion. From choosing a kid's prescription glasses to women, you need to have the right lenses for your eyeglasses to have a perfect and soothing vision.
The lens of your eyeglasses impacts heavily on four major factors that include comfort, safety, vision, and appearance. You need to spend some time to search the right material and coatings of the lenses.
Here is a complete guide that will help you to choose the right lenses and coatings that offer the finest value as per your needs.
Eyeglasses Lens Material
The material of the lenses holds huge significance in vision correction and safety as well. If you consider glasses lenses, you will realize that they are heavy but can easily be broken that can harm the eye or even cause permanent damage. This is the reason glass lenses are hardly used in eyeglasses. Here are some types of lenses listed below to give you an idea about their features, so you can make a better choice.
Plastic Eyeglasses Lenses
Plastic lenses are made of plastic polymer that are extremely light in weight and also affordable. They are almost half of the weight of glass lenses and currently, it is one of the most preferred lenses by the consumers.
Polycarbonate Eyeglasses Lenses
Polycarbonate lenses are one of the safest lenses for eyeglasses that are lighter and impact-resistant as compared to plastic lenses. It makes these lenses a perfect choice for the kids' eyewear.
High-index Eyeglasses Plastic Lenses
When demand for thinner and lighter lenses increased, eyeglasses lenses manufacturers introduced high-index plastic lenses. These lenses have the high refractive index that you may consider for your prescription eyeglasses but it is important to consult your eye specialist first.
The refractive index of the eyeglass lens is a number that is a sum of how material bends light that also depends on the time that light takes to travel through the material. The refractive index of the plastic CR-39 is 1.49 that means the light will travel 50% slower through the material as compared to the vacuum. If a material has a higher refractive index then it means that greater the refraction (bending) of light will be.
The bottom line is that a lens that has a high refractive index is going to be thinner than a lens that is built with a lower refractive index.
To give your lens a slimmer and attractive look, the aspheric design is an ideal way to do it. These are the designs where the curvature of the lens changes gradually from its center to edge. Aspheric lenses create less magnification of the consumers’ eyes, ensuring a better appearance as well. It also enhances the clarity of peripheral vision for consumers.
Most of the high index plastic lenses are built with aspheric designs that improve the lens look and optical performance both. You can consider the option of aspheric design with polycarbonate and CR-39 lenses but it will only increase your cost.
The above-mentioned information will hopefully help you to choose the right lenses for your eyeglasses and will enable you to experience a flawless and comfortable vision.