What Are Single Vision Lenses?
What are single vision lenses? You may have the same question. Single vision lenses have only one prescription for a given distance. Most reading glasses and distance glasses have single vision lenses because they are designed for people who are difficult in seeing either near or far. Some people are using their single vision glasses for both far and near depending on their types of prescription.
You can choose to wear single vision reading glasses to correct your eyesight if you have trouble reading text on your phone or computer screens. You can also wear single vision glasses to help you make out traffic signs while driving.
Single vision lenses for farsightedness are thicker at the center than those for nearsightedness, which are thicker at the edges. And the single vision lenses generally range between 3-4mm in thickness. The thickness varies depending on the size of the frame and lens material chosen.
After learning some information about one lens glasses, do you know the benefits of them? So, in the following part, we will show you the advantages of single vision lenses.
Eyebrow Frame Glasses
The shape of eyebrow frames is somewhat similar to half-frame glasses because the upper half of the frame is made of a loop of wire similar to the eyebrows, which gives it the name eyebrow frame. The style is very fashionable, and fashion seekers may wish to wear a pair.
Glasses with different frames have different characteristics and are applicable to different groups of people. Friends who wear glasses online can choose according to their needs. In short, what suits you is the best. As long as you choose the right frame, you can not only look young but also make you look more fashionable and fashionable.
Where to Buy Anti-Reflective Glasses?
From the above, you have learned some benefits of anti-reflective glasses. You may ask where I can buy them. To do that, you can buy them from the local optical store. But now, you can buy them online and it can bring you great convenience.
So, if you want to buy anti-reflective glasses online, Koalaeye Optical is recommended. It provides all kinds of eyeglasses, sunglasses, and frames. What’s more, Koalaeye Optical provides a free shipping service so that the package will be mailed for you with your great convenience.
We are thinking about buying cheap glasses online, but wondering how long it will take to get there, or what the glasses will look like? The secret to getting a good pair of glasses at the right price at the right time is to find a reputable eyewear retailer. They provide attentive customer service, high-quality products, and fair return policies. So where can I get cheap glasses online?
FramesDirect's website provides a range of discounted designer frames for men and women, including Burberry, Coach, Dolce & Gabbana, Prada, and Versace. Frames start at about $40.
What are pure titanium rimless glasses?
Pure titanium rimless glasses combine the advantages of pure titanium glasses with rimless glasses. Rimless frames are mainly focused on lightweight, reducing the pressure on the wearer and enhancing comfort. Moreover, rimless frames are not obvious either in appearance or in weight, which alleviates some of the distress caused by myopia. Pure titanium material increases this lightness to the extreme. Pure titanium frame has a uniform and natural color. It is not easy to fade, not easy to rust, and anti-allergy. It is the pursuit of high-end taste glasses lovers' first choice.
What is blue light?
To prevent blue light, we must first understand what blue light is. The visible light with a wavelength range of 400-500 nanometers is called blue light. The light sources used in daily LED lighting and display products, including mobile phones, flat panels, and TVs, are mostly LED light sources excited by blue light. However, not all blue light is harmful to the human body. The human eye has an extremely low tolerance to blue light radiation in the 400-440 nanometer range. When the light intensity enters this threshold, photochemical damage is likely to occur. However, blue light radiation in the range of 459-490 nanometers is essential for regulating the human body's circadian rhythm and can affect the secretion of human melatonin, which in turn has an impact on the body's biological clock, alertness, and mood.
Scientifically effective anti-blue light lenses must not only block harmful blue light but also cannot filter beneficial blue light. Most of the ineffective anti-blue light products on the market currently have two types of problems. One is that there is almost no protective effect on the blue light in the vulnerable zone of the human eye. The other is excessive protection, shielding the blue light spectrum in the beneficial band so that the blue light that is beneficial for physiological adjustment cannot enter the human eye. At the same time, the color of the lens is yellow, which is prone to color shift, aggravating visual fatigue, and even inducing the risk of myopia.
What Are Pinhole Glasses?
Pinhole glasses, also called stenopeic glasses, are plastic eyewear with hundreds of pinhole-sized perforations in place of lenses. Pinhole glasses are mostly used to improve refractive errors in the eye because they shield the eye from indirect rays of light which can distort vision. This would decrease the blur circle on the back of the retina.