How do I know my eyeglass frame size? | KOALAEYE OPTICAL

How do I know my eyeglass frame size?

About Non-polarized Sunglasses

Non-polarized sunglasses block only commonly strong light and filter ultraviolet rays. And the efficiency of its filter ultraviolet ray is lower. But you know, in our daily life, in addition to strong light and ultraviolet light, the light through the uneven road surface, water, and other places will also produce an irregular diffuse reflection of light, so that the human eyes will suffer blurred vision, fatigue. Generally speaking, for a short period of outdoor sports, the non-polarized sunglasses can already meet your needs.


Transitions® Photochromic Lenses

When you step outside, it immediately begins to darken. The lenses help prevent harmful blue light from digital devices, screens, and sunlight to help reduce glare and prevent eye strain. They have the function of 100% UV blocking,anti-reflection treatment with blue light protection. They can constantly adapt to changing daylight conditions to reduce excess light and optimize color contrast and polarized light to prevent dazzle. They filter out excess light to provide maximum comfort. And provide high contrast and minimize glare. They provide increased color recognition and depth perception.



How to buy prescription glasses online?

Go to the ophthalmology department of a regular hospital first, because you need to take a photo of your optometry sheet to the seller when buying glasses online. Accurate optometry is the first step in choosing the right glasses. After getting the prescription, we can choose the frames online. Various material frames have different properties. Some are light and some are tough. In short, each has its own characteristics. I can't say which one is better. According to your own needs and face shape, choose the suitable glasses frame. Next, choose lenses. There are mainly two types, spherical lens, and aspherical lens. The aspheric lens is better. Also, confirm what specific functions are needed, such as radiation protection, UV protection, etc. Finally, the seller will look at the data on the prescription. If your eyes have high astigmatism, you need to add money. Then take the payment and wait for your new glasses. It’s unbelievable that you can buy glasses online in just a few minutes. Buying eyeglasses online is fast and convenient.


Understand the basic knowledge of prescription of glasses

The prescription mainly includes the refractive status of the eye, degree of correction required, pupil distance, and the purpose of using the lens. Nowadays, there are many brands and varieties of glasses. Glasses are usually classified according to the material, structure, and use of the lens. Most of the glasses in the prescription are classified by structure. Nowadays, single vision glasses and multi-focal glasses are mainly used, and multi-focal glasses include bifocal glasses, three-lens glasses, and progressive multifocal lenses.



Do all glasses come with nose pads?

The glasses without the nose brace are plate glasses. In reality, there is still a nose pad, but it is relatively small and it's part of the frame. The westerners have high nose bridges, and many glasses have no or very small nose pads. For example, Harry Potter's glasses have no nose pads. European and American brands will change their nose pads for the Asian market. Eyeglasses without a nose pad rely on the bridge of the nose to support the center beam. It's hard for Asians to stand up, and their eyes are more protruding than sunken like westerners. Glasses are usually demanded to keep a 12mm distance between the lens and the eyeball, otherwise, the optical performance will have a great impact.


Gainesville Opticians

Each frame is an extension of your personality. Use your favorite frame to give you the ideal vision. There are a variety of lenses that fit any prescription, including progressive ones. Gainesville Opticians provides a customized collection of frames and styles from brands we know, trust, and love.


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How to buy contact lenses online?

Choose the right contact lens for your situation. Base arc and degree need to be added in the hospital or optician shop to determine. Try not to buy according to the framed degree. Some businesses claim to have the lenses having South Korea's silicone hydrogel, with annual throwing. They are not to be believed, because the material characteristics of the silicon hydrogel are not capable of making long-time discarded type lenses. There are a lot of things to pay attention to in order to properly wear contact lenses. For example, a medical optometry sheet is the premise of attention. Each pair of contact lenses is marked on the package of the basic arc, diameter, water content, diopter, and other parameters. Only according to the optometry sheet, you can choose the correct basic arc, diameter, and diopter. At the same time, there is a certain distance between the glasses and the cornea.

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