Why should the surface of the lens be hardened?
Compared with glass lens, resin lens has the characteristics of lightness, safety, and comfort, but resin lens friction with dust or gravel in the process of use, resulting in lens wear and forming scratches. These scratches in the center of the lens can interfere with vision.
Therefore, in order to improve the wear resistance of resin lenses, it is necessary to add a layer of anti-wear film to the surface of the lenses. This is the hard coating technology of the lenses, which is called Hard coating.
Uvex Stealth OTG Safety Goggles
They provide more protection and coverage than other prescription safety glasses. Due to the full seal around the eye, these OTG safety goggles prevent chemical splashes, and bumps, and scratches, making them wonderful general-purpose safety goggles to wear over your prescription glasses. Dura-Streme's scratch-resistant coating helps keep the lenses crystal clear, which is especially important when wearing the underlying glasses.
The lifetime of contact lens
Traditional type: the replacement cycle is more than 3 months, not more than 1 year, that is, we say we abandon after one season, and we can abandon after half a year and a year.
Frequent-change type: the replacement cycle is more than 2 weeks, not more than 3 months, that is, we often say that we throw them after 1 month or two weeks.
Abandoned type: as a one-time use, common for the day use.
Contact lenses, like food, have an expiration date. For example, the shelf life of daily contact lenses is one day (after it is opened), and can not exceed this time. And the life span of a pair of glasses depends on how long you use them each day. Although different lens materials determine different wear times, we recommend that soft lenses should not be worn for more than 8 hours per day (do not wear soft contact lenses to sleep). Traditional contact lenses can be used for a long time, so the lens is easy to produce protein-lipid deposition, and then they are easy to cause eye surface inflammation and hypoxia reaction. If conditions permit, it is recommended to choose the frequent-change type and discard type, the shorter the cycle, the healthier.
Types of Varifocal Lenses
Elite varifocal lens: it has the widest field of vision at all focal points and is tailor-made to your exact vision and customized to fit within your frames. With the least distortion around the edges, they are very easy to adapt to and will give you the clearest level of vision available.
Occupational varifocal lenses: the last varifocal lens we want to mention is the occupational varifocal lenses. They are specific to different lifestyles, hobbies or occupation vision needs. If you frequently perform tasks at a particular distance for a long period of time, then you have a broader, more comfortable zone of vision.
Diamond-shaped face with irregular glasses
A diamond-shaped face is more difficult to choose frames because facial features are more distinctive. When choosing glasses, you should also choose more distinctive ones to modify your face. Irregular glasses, such as hexagonal or pentagonal glasses frames, can be selected. The fashion sense is particularly strong. It looks like a little girl's vision and has a good modification effect.
How do bifocal reading glasses work?
Bifocal reading glasses have two different lenses on the same lens. The top of the lens is your normal distance prescription, while the bottom is for close-up viewings, like reading. The two lenses allow you to alternate between them by moving your eyes up and down as needed. A bifocal lens is a type of lens that has two different areas of vision: one for close range and one for long-range. Typically, the upper section covers remote vision and the lower section covers reading. With a traditional bifocal lens, you can see the difference between the two lenses because the lower curve is a little different.
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.