How do you buy prescription glasses on GlassesUSA?
Fill out a form on their website to enter a prescription, choose to have them follow up and require it later, or use their prescription scanner app on an existing pair of glasses. However, the app isn't always easy to use. You'll need your phone, a computer with enabled cookies, your glasses, and a magnetic stripe card to determine the size.
The weight difference between pure titanium frames and titanium frames
Titanium frames are slightly heavier than pure titanium frames, but they are both high-quality materials, so they are more comfortable on the outside. The specific gravity of pure titanium is generally 4.5, while titanium alloy is 8.9, which means the material is equivalent to half of the titanium alloy. So the frames are lighter in your hand.
Do night driving glasses really work?
Yellow lenses reduce the amount of light entering your eye, reducing visibility. These darker colors block more blue light than yellow lenses. But they block more light from entering the eye, reducing visibility even more in low-light conditions. In fact, even yellow lenses reduce overall visible light to some extent because they block some blue light. This can be a good thing during the day, but not at night, when maximum visibility is key. Night driving glasses come in a variety of yellow and amber colors. The darkest lenses filter out the harshest light, but they filter out the largest amount of light, making it difficult to see in dim or dark conditions. Some people who wear night driving glasses say they can see better with them on. However, vision tests have shown that night driving glasses do not improve night vision, nor do they help drivers see pedestrians any faster than they would without glasses.
They can reduce glare.
They can absorb blue atmospheric scattering and provides more contrast. When performance is your top priority, the right lens tone can give you the results you want. UV rays are blocked by a special coating on the lenses. And inferior sunglasses not only cannot hold back ultraviolet rays but let lens permeable luminosity drops seriously, making pupil greens. Ultraviolet rays can shoot in large quantities instead, your eye is damaged.
5 Unbreakable Eyeglasses Frames
In this section, we will list the most durable eyeglasses frames and we will introduce them one by one.
Titanium: One of the most durable eyeglasses frames is the titanium eyeglasses frames. It is lightweight, strong, and flexible. So, titanium eyeglasses frames have lots of fans in the eyeglasses market. In addition, pure titanium is hypoallergenic. But, due to these features, titanium eyeglasses frames are expensive than other frames.
Stainless steel: Stainless steel frames have some spring in them, which resists breakage. Stainless steel also resists corrosion, giving it a longer life. However, stainless steel eyeglasses frames may be hypoallergenic, depending on the alloys used.
Nylon: many people like athletes like nylon frames because they are flexible, lightweight and unbreakable - at least in the short run. However, nylon frames may become brittle over time, which is something to think about.
Kevlar: kevlar eyeglasses frames used in bulletproof vests can survive strong impacts, making them a good choice for contact sports and high-risk jobs. It does not have a lot of flex, limiting its applications.
Flexon: besides the above unbreakable eyeglasses frame, we will introduce another brand-name metal - Flexon. Flexon has a unique capability for springing back to its original shape after it gets twisted and they are called memory metal.
About Polarized Sunglasses
Polarized sunglasses only absorb the reflected light of the object itself, presenting what is being seen, making the field of view clearer and thus reducing eye strain. In addition, the light through a bumpy road, water, and other places also can produce irregular diffuse light. The polarized lens can be this kind of optical filter, only absorbing the reflection of the object itself. Because of its high-efficiency filter layer, the UV blocking rate of the polarized sunglasses is 99%, which can effectively reduce UV damage to the eyes. And if you are driving, fishing, traveling, skiing, it is recommended to choose more powerful polarized sunglasses.
What Is Anti Reflective Coating?
Anti reflective coating, also known as AR, anti-glare, no-glare, or glare-free coating, can provide benefits to your vision. Anti reflective coating is added to lenses to reduce glare caused by light hitting the back of the lenses to improve your vision and make your eyeglasses more visually attractive.
Anti reflective coating will eliminate all reflections from the front and back surfaces of your lenses. Hence, more light is able to pass through your lenses which improves your vision. At the same time, fewer distractions are visible and the lenses are hardly noticeable, especially in the dark. So, is anti glare worth it? Most people agree that.
