What Does Tint Density Mean?
Wed, May 04, 22 By : Koalaeye
What Are Progressive Lenses? Your eyes change with your age. When your reach your 40s, you may find that it is difficult for you to focus between a book, a website on a computer screen and the conference room whiteboard. Progressive lenses are growing in popularity among people who need help seeing near, far and in-between. Progressive lenses have grown in popularity and are one of the most common solutions to treat vision loss that occurs with age or presbyopia....

What Are Progressive Lenses?

Your eyes change with your age. When your reach your 40s, you may find that it is difficult for you to focus between a book, a website on a computer screen and the conference room whiteboard. Progressive lenses are growing in popularity among people who need help seeing near, far and in-between.

Progressive lenses have grown in popularity and are one of the most common solutions to treat vision loss that occurs with age or presbyopia. Progressive lenses have a seamless increase in magnification from the top to the bottom of the lens, helping you see clearly at all distances with just one pair of glasses. The top portion of the lens enables you to see the far-away objects, the middle portion of the lens enables you to focus on the intermediate objects and the bottom to see objects close-up. The prescription changes little by little across the lens surface providing a gentle transition.

After knowing what the progressive lenses are, do you know what are the pros and cons of progressive lenses? If not, keep on your reading and we will show you some information.


How to choose frames?

You can choose a thicker frame with the lens, and then pay attention to the temple. It is better to have a little weight, or the frame is easy to lose forward. The shape of the frame can be elliptical. If the frame is rectangular, the rim of the lens may be a little thick. Choose frame TR90 plate and the frame will be wider than ordinary alloy. Of course, if you like metal, there are now metal frames with thick frames.



How to Find Reading Glasses Strengths?

Some reading glasses also come with strengths. So, how do you know what strength reading glasses to get and how to find reading glasses strengths? The strength of all reading glasses is measured in dioptre, with units increasing by 0.25 dioptre depending on the power of the lens.

The reading glasses strengths range from +0.75 dioptre to +3.00 dioptre. Both lenses have the same power which is indicated by a permanent marking on the inside of the frame or with a removable sticker on the lens. So, you can find the reading glasses strengths of the glasses.

The important thing you need to notice is that when higher the number, the greater the power of the lenses is when choosing reading glasses. So, glasses with a marking of 1.0 are low power while those marking +3.0 are high powered.


A round face fits on a square frame.

The human face of a round face is shorter. So they had better match the slender frames that take curves slightly to reconcile the whole feeling. Angular and square frames are helpful to modify facial lines (prominent longitudinal lines). This can promote strengths and avoid weaknesses so that your face appears contour.



Where can I buy prescription glasses online?

DIFF Eyewear

DIFF Eyewear is known for its personalized sunglasses, with a large selection of bold and stylish frames. However, you can still find anti-blue light glasses and regular prescription glasses on the site. You're sure to find plenty of fashion-forward options here.

Warby Parker

Warby Parker's mission is to provide designer-style frames at an affordable price. The brand provides a home trial-on service, where you can pick up five pairs of glasses. Warby Parker will give you the freedom to try on before you buy. You can sort through all the frames they've collected, or you can take a short online test that asks you for your preferences like frame materials, shapes, and colors, and then narrow your selection down to only frames that fit those specifications.

KoalaEye Optical

KoalaEye is a new brand of glasses. From concept, design to manufacturing, we control and supervise the entire process. This allows us to save on the cost and give you a favorable price. KoalaEye provides everyone with high-quality glasses at an affordable price.

There are many ways to choose sunglasses, but shouldn't everyone have an affordable pair of glasses to make themselves look good? KoalaEye believes that everyone should have a pair of high-quality glasses, and more importantly, affordable. When sunglasses are an indispensable part of our daily life, the price should not be too high. KoalaEye would like to provide more economical glasses for people all over the world.


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.



The advantages of contact lenses

Contact lenses are worn directly over the eye. Contact lenses are tightly attached to the surface of the eye and can always follow the eye, so you can maintain the same open field of vision like a normal person. You can participate in sports and outdoor activities without worrying about your glasses falling off or breaking. You can even use colored contact lenses to change the color of your eyes. Some girls, in particular, can make their eyes look bigger and more beautiful with the help of various color contacts.

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