Why Do My Transition Lenses Stay Dark?
Sun, Apr 03, 22 By : Koalaeye
Step-by-Step Glasses Size Guide In this section, we will show you how to perform glasses measurements. But the first thing is to know what face shape you have. If you do not know, click here to have a check. Then you need to know where to find the size measurement of your glasses. In general, you will find numbers that look like this 51-17-145 at the temples of your eyeglasses. Of course, these numbers come at different meanings. The first...

Step-by-Step Glasses Size Guide

In this section, we will show you how to perform glasses measurements. But the first thing is to know what face shape you have. If you do not know, click here to have a check.

Then you need to know where to find the size measurement of your glasses. In general, you will find numbers that look like this 51-17-145 at the temples of your eyeglasses. Of course, these numbers come at different meanings.

The first number often refers to the lens width. Lens width is the horizontal diameter of the lens at its widest point. In optometry, another term is eye size.

The second number often means the bridge width. Bridge width is the part that joins the two lenses and sits over the nose. Some refer to this as the gap. The bridge width varies between 14 and 24 millimeters.

The third number often means the temple length. The temple is the arm that keeps the sunglasses on your face. That arm extends to the part that hangs on the ears. The length is usually 135, 140, or 145 millimeters.

Lens height measures the size of the lens vertically, that is from the top to the bottom of the lens. Although sizes may differ depending on the brand, the standard size is somewhere between 32 and 38 millimeters.


Progressive Lens

Standard progressive lenses are multifocal lenses with three observation areas, farsightedness, intermediate vision, and nearsightedness. Unlike bifocals, there are no visible lines between each viewing area. They have a seamless, invisible design, where the optical power changes 'gradually' throughout the lens. Many people confuse 'bifocal' or 'trifocal' with 'progressive' but remember that bifocals and trifocals have visible lines in the lens, while progressive lenses do not. Because progressive lenses have no lines in the lens, they are more popular multifocal lenses than bifocal lenses.

The main observation area of the progressive lens is a far distance, the smaller area at the bottom of the lens is used for myopia, and the middle area in the middle is smaller. Standard progressive glasses are very suitable for general purpose glasses, focusing on hyperopia activities (such as driving and walking) and sufficient area in the lenses for nearsighted activities (such as reading and computer use). The left and right sides or 'convex corners' of the lens are deliberately blurred to achieve an invisible design. The clearest line of sight in the gradual process is from the center to the top of the lens.



Continuous Pursuit of High Quality of KOALAEYE Eyewear

KoalaEye introduced the most progressive Italian glasses research and development technology and professional production line, closed to The times and the market. The Italian professional design team brings the world's top design concept. They insist on using progressive materials, high technology in manufacturing by virtue of Italy's technology. The glasses have been tested for more than 100 beats and ergonomically changed based on different face shapes. They treat each pair of glasses with the same standards as a work of art, making the whole pair of glasses look more sophisticated and special. The product style, quality, and details should be strictly controlled, so that every pair of glasses, no matter what style and material, must belong to high-quality products if it is produced.


OSKIDE night driving glasses

With excellent night vision, this product can provide you with clear vision when driving at night, on cloudy or rainy days. In addition, it can protect you from the sun's harmful rays and bright headlights. Made of durable materials, they are flexible enough to withstand strenuous exercise and high-intensity outdoor activities. Equipped with polarizing lenses, they reduce glare and improve clarity when bright lights may be distracting, so they are perfect for sunny days or night driving. And it has UV 400 UV protection function. It protects your eyes from harmful ultraviolet and blue light.



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 know your face shape to choose glasses?

To determine your face shape and spectacle styles that will look best on you, pull your hair away from your face and look directly into a mirror. Look closely at your face and head. You need to measure your forehead width, cheekbone width, jawline width and face length.

After measuring, you need to consider your facial features. There are a few characteristics tied to specific face shapes. For example, a rounder jawline is typically tied to a rounder face shape, a pointed chin is closely related to a heart-shaped face. And you need to take note of the angles and contours of your face to see they are soft or sharp or pronounced or not.

Then you can check whether you have a round shape face, squared face or others.

Round face shape: the forehead round at the hairline; the width of your face is the same as the length; the jawline round with very subtle angles, and the length of your face is the same as the width.

Square face shape: the hairline follows a straight line; there are minimal curves to your cheekbones; you would have a strong and squared jawline.

Diamond face shape: the width of your face is smaller than the width of your cheekbones; the cheekbones significantly wider than your forehead and jawline; you may have a narrow chin area; the length of your face is the same as the width.

There are also other face shapes. You can click here to know more.



Semi-Rimless Frame Glasses

Half-rim spectacle frames replace part of the spectacle frames with nylon wire, giving people the feeling of bottomless frames. It is lighter and looks more chic and firm. If you are a highly myopic friend, choose a pair of half-rim glasses, which can not only reduce the load on the bridge of your nose but also look more fashionable. Half-rim glasses are the first choice for men in the workplace, and they are more mature and stable.

Related The Blog
Hinterlassen Sie einen Kommentar
Cart
Close
Back
Account
Close