Visionworks
Eyeglass frames aren't just about sight, they're a fashion statement. In the Visionworks collection of designer glasses, there are top brands to choose from, including Nike, Ray-Ban, and Guess. By using the filter, you can browse the frames by category, gender, brand, price, color, lens type, and more, making it easy to buy glasses online. While the lenses sharpen your vision and bring the world into focus, the frames are a statement of your personality and style. If you want to buy glasses online, they offer a good price option.
How to Test Blue Light Glasses (Amber and Red Lenses)
This section will show you how to test blue light glasses with amber or red lenses.
1. The Black and Blue Squares Test
1. Prepare black and blue paper.
2. Wear your blue light glasses after sunset and check whether both paper appear black.
3. If they do not appear black, your blue light glasses can’t block all blue light.
2. RGB Color Chart Test
1. Prepare an RGB color chart as follows.
2. Wear your blue light block glasses and look at the chart.
3. After wearing blue light blocking glasses, if the B section becomes black and the G section becomes darken, it shows that your blue light glasses block blue light and some filter some green light.
4. The less bright the green circle with your blue light glasses, the better they are.
Besides the above ways, you can ask the professional optician to perform a professional blue light glasses test, which would be more reliable. After that, you can know whether your glasses work effectively to block blue light.
What’s more, if you want to purchase a pair of effective blue light blocking glasses, you can try Koalaeye Optical. It is cheap and provides free shipping services.
How much do a pure titanium eyeglass frame cost?
For the plastic frame, without a fixed metal rod in the middle, the retail price of the exclusive store is 30 dollars or so. Resin-coated metal frames are inexpensive, 35 to 85 dollars in the store. Because pure titanium is more difficult to make, and the material is more expensive, the frame price often starts from 50 dollars. For example, the ordinary Seiko pure titanium eyeglass frame is about 85 dollars. In Europe and the United States and other developed countries, titanium spectacle frames are popular as a kind of high-grade decoration and fashion. In the past two years, the domestic began to be popular little by little. Titanium spectacle frame belongs to high-grade consumer goods, and the price is usually above 50 dollars.
How to Find Reading Glasses Strengths?
With the increase of age, your vision may begin to decrease and this is an inevitable change in your life. So, when you are trying to decipher some smaller prints, you may need the reading glasses.
When your vision begins to decrease, do not worry, this is a normal change. You will find that the deterioration insight often occurs around the age of 40. The technical term for this condition is called presbyopia, a natural, age-related change in the lens of the eye which makes it more difficult to focus on smaller print and close-up objects.
The condition may become worse as you are near 60 years of age, depending on the type of near distance tasks you performing. Of course, you also need to consider the actual situations.
Why do spectacle lenses fog up?
The fog on the surface of the lens is essentially related to the saturation pressure and water vapor liquefaction. The air is full of water molecules, which are constantly doing irregular movements. When there is no temperature difference, water molecules keep hitting the surface of the lens and will keep bouncing off. The lower the temperature, the slower the speed of movement. Therefore, when water molecules hit the cold lens from the hot air, on the one hand, they move too slowly to fly out in time. On the other hand, because of the relatively low temperature of the lens itself and its vicinity, the water vapor will liquefy. As a result, more and more water will accumulate on the lens and form small droplets, eventually forming a foggy layer. As the lens heats up, the mist evaporates back into the air, and the fog disappears.
Where can I buy prescription glasses online?
Eyeconic
Eyeconic was created by the nonprofit VSP, and one of its missions is to make eye health a priority by making prescription glasses available online. There are more than 1,500 styles of frames, including basic prescription lenses. You can filter the frames according to your face shape or a special size like small-face glasses or low-bridge glasses. You can use Eyeconic's virtual try-on feature. The feature combines a five-second video with a photo to give you the most accurate evaluation of your face. The glasses can be returned within 60 days for a full refund. The purchase of each pair of glasses has to go through 25 stages of inspection. Every pair of high-quality glasses and contact lenses has the same level of care. The mission is to help you find the best glasses or contact lenses for you and take care of the eyes behind them.
Liingo Eyewear
You can find everything from classic understated styles to bold, prominent frames. It's stylish and enhances your vision. In addition to the virtual try-on feature, you can choose from up to five different frames to try out at home, absolutely free. All frames come with free standard prescription lenses, or you can add lenses like progressive lenses and high refractive index lenses. If you're not sure which lens is best for your prescription, you can contact a trained optician who will assess your needs and offer you specialized advice. Liingo supports any adjustments you need.
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.
How to choose blue light blocking glasses?
Look at lens color. Ordinary lens and blue light blocking lens is the same yellow-green film, and they can be placed in light to identify the place.
Regular lenses have a yellowish tinge in the reflection of light. And anti-blue light glasses film color, there is the blue color in the yellow and green film, this is because of the reflection of blue light.
Look at the instructions. Check the specs and test reports of glasses. Look at the lens manufacturer's qualifications and whether the lens contains radiation.
