What Are Varifocal Glasses?
Varifocal glasses, also known as varifocals, varifocal lenses, or progressive lenses, have a gradual change in strength from the top of the lens to the bottom with multiple focal points in between. Unlike bifocals, varifocal glasses have no specific area of lens strength, but progressive lens zones.
Varifocal glasses have three different prescriptions in one pair of glasses, allowing you to correct near and far vision. And it is convenient for you since you don’t have to change the glasses frequently.
How to Choose Glasses for Long Face?
Bold shapes and eyeglasses with decorative details are also a smart choice since they help draw attention to your eyes and can add width to your face. Be sure to avoid narrow or rectangular shapes, which can make your face appear longer.
Square glasses: if you have a long face, you can try square glasses whose sharper corners can help to balance out the length of your face and complement your narrow features. Choose frames that are slightly wider than your cheekbones to make your face appear broader.
Two-toned glasses: if you have a long face shape, the two-toned glasses would be a good choice. The color-top frames create an optical illusion that draws focus upward toward your eyes rather than to the length of your face.
Why are some glasses expensive and others cheap?
Lenses do not regulate vision, but some progressive lenses can help the ciliary muscles to adjust. The quality of the lens is mainly determined by the transmittance, the surface, the aspherical surface, the refractive index, the coating quality.
The higher the refractive index, the thinner the lens, and the more expensive the price, for some people with high degrees, the lenses also play an aesthetic role. Commonly used are green film, and some are purple film, gold film, etc. How much cheaper is a relative number, and there are many other factors to consider besides price.
The hinge is not easy to break, rust and impact resistant
Ordinary glasses frames are easy to break and rust, so we always have to replace glasses frequently. Pure titanium spectacle frames are made of 'space metal' aviation materials, and strive to accompany your growth with each pair of pure titanium spectacle frames, witness every moment of your happiness, anger, sorrow, and joy. Let pure titanium spectacles become your personal little guard and the doorman for the window of the soul.
How To Choose Better Night Driving Glasses?
Choose and buy glasses to use a special night with anti - strong night driving lens. The demand is to block 80-90% of the strong lights and harmful lights, and at the same time to make the road more clearly. Choose glasses with thicker lenses, they are more durable and protect the eyes of drivers against irritation and accidental breakage. As common sunglasses and color-changing glasses are only suitable for daytime wear, wearing them at night will seriously affect the driver's vision.
Common light yellow night driving glasses can only block a small amount of light, and is not very suitable for night driving glasses standards. Therefore, in the choice of lenses of night driving glasses, we must do the selection and demonstration of the national authority of the formal institutions to test products, to achieve the desired effect in actual use. Don't buy products that are not up to standards from vendors. Such products not only do not block the lights but may affect the driver to see the road ahead, affecting the safety of the train operation.
Marc Walks pure titanium rimless glasses
The detailed processing lets you experience the perfect quality. They areβ titanium pure titanium ultra-light rimless myopia glasses, the new silica gel temple tips, and rivet design, and they will not deform with many twists and turns. The silicone material is safe and non-toxic. They have a non-screw design, so installation is not loose, and the lens is stable and not shaking. The lens is not in direct contact with metal and is not easy to break. The degree is not limited, so 1500 degrees below can be installed.
How to Know If You Need Bifocal Glasses?
As you get older, you will find that is more and more difficult to read or focus on things that are really close up. This is called presbyopia and it is a common eye condition among older people.
How to know if you need bifocal glasses? If you find yourself squinting at the text that once was easy to read or your vision is blurry, you may need to see an eye doctor. In this situation, you may need bifocal glasses to correct your eyes.
If you currently wear glasses but see print more clearly when you remove them, it is a sign that you may need bifocal glasses in the future.
To know if you need bifocal glasses exactly, check your eyes by an optometrist or ophthalmologist.