What effect does a lens with the hard film have?
In order to improve the wear resistance of the lens, it is necessary to coat the surface of the lens with hard film. At present, silicon atoms are used to stiffen the membrane, that is, the stiffening solution containing organic matrix and inorganic superfine particles including silicon element is used to make the hard film have toughness and hardness at the same time. Because the common resin lens is far easier to wear than the glass lens, so the addition of hard film is mainly used for resin lens. It is usually applied to the front surface of the lens, and the anti-wear ability of the resin lens with the film will be enhanced a lot, and the light permeability will be strengthened.
Can you get prescription glasses for night driving?
It is recommended to choose prescription night driving glasses with an anti-reflective coating.When you're driving at night, you'll encounter several bright light sources, including the car's headlights, taillights, and street lights. These light sources can be a distraction for any driver, but especially for those with eye problems. The light reflected from these light sources can cause these drivers to temporarily lose sight of the road, which can lead to many unfortunate situations. As a result, the anti-reflective coating protects your eyes from nighttime brightness and daytime UV damage. The coating on the glass prevents the reflection of these light sources, allowing you to better focus on what's happening in front of your car. Meanwhile, prescription glasses with an anti-reflective coating can reduce glare and improve vision. Whatever prescription glasses you choose for night driving, make sure they have an anti-reflective coating.
Does it matter if the glasses are damaged when mailing?
Many people think that the frame of glasses is slightly damaged and can be ignored, in their eyes, if the lens is fine, the glasses are OK to use. In the whole process of matching glasses, it is necessary to choose a regular lens organization. The lens should be suitable, and the choice of the frame is very particular. Once the frame is out of shape, it needs to be replaced, and if left unchecked, further damage to the eye is possible.
Metal Eyeglasses
Whether you like classic looks or prefer rectangular and functional things, all metals will look new in 2021. Combining the trend of super large frames, you get a big round metal frame. These styles are not heavy and fit all face shapes, from round to square, and anything in between.
How much does it cost to get glasses at Walmart?
The price of the frame varies according to the material. Also, the price of the lenses will vary depending on your prescription. Walmart Vision Center provides frames online starting at less than $20 and going as high as $165. More than 250 prescription glasses are available for under $100, including styles for men, women, and children. The price of the lens depends on the type and frame you choose. The fundamental price of the frame includes clear, plastic, single-vision lenses with scratch-resistant coatings.
Benefits of Progressive Lenses
The lens looks like a single vision lens, with no dividing line between degrees. Not only is it beautiful in appearance, but more importantly, it protects the privacy of the wearer's age (for the wearer of reading glasses). There is no need to worry about showing the secret of the wearer's age by wearing the glasses. Because the degree is gradual, the replacement of the adjustment effect is increased step by step according to the shortening of the close distance. There is no adjustment fluctuation, which is not easy to cause visual fatigue. Clear vision can be achieved at all distances in the visual scope.
Design principle of progressive multifocal lens
For the same piece of the lens, the top is used to see far, the bottom is used to see close. The upper and lower degrees are different.
There is not a sudden change in the distance degree fixed above the lens to the near degree fixed below the lens, but a gradual transition between the two through gradual changes in refractive power, which has special benefits over common bifocals or trifocal lenses.
