Buying glasses can feel eerily similar to buying a new car: the prices are often hidden from you, they cost more than they have any right to, and there’s a bunch of mysterious upgrades shoved at you. coatings I’m talking about coatings: the anti-scratch and anti-glare material you can add to your lenses to make your glasses and your vision even more powerful. On the surface, they sound like common sense. (Like a man who once cleaned his glasses with a concrete splattered shirttail). it acted like sandpaperanti-scratch coatings seem like a good idea.) But these coatings really and truly work need any of them?
It’s simply a clear coating applied to the front and back of your lenses that helps protect them from scratches and scuffs as you get used to walking through your friction-filled life. Almost all modern lenses are pretty scratch-resistant in their basic form, but the word “resistant” doesn’t mean “waterproof,” so adding a little extra protection is always a good idea. If you have the option of adding extra scratch resistance, it’s usually worth it because it extends the life of your glasses.
Recommendation: Difficult yes
This coating reduces the amount of light reflected by the lenses. This can help improve the clarity of what you’re looking at, especially computer screens, which to shoot light in your eyes and help with night vision, especially when driving. Contrary to what you might have heard, they won’t actually do much with light glare, like when someone shines their lights on you on the freeway. However, not everyone needs AR coatings; if you don’t drive much at night and don’t work in front of a screen much, you may never notice the need.
Recommendation: It depends on your lifestyle.
Ultraviolet light (UV) is the violence of the sone comes to us every day; it is the same ray of light that blesses us with sunburn and eventually skin cancer. So as you can imagine, it’s not great good for your eyes, which is why most sunglasses will advertise a certain amount of UV protection. Note, however, that your standard uncoated eyeglass lens already blocks most UV rays; overlay only increases it to 100% protection
Recommendation: No a bad idea, but only essential if you spend a lot of time in the sun.
This coating aims to reduce or eliminate that death-defying moment when you step out into cold weather and your goggles immediately become cloudy with water vapor, or when you put on your face mask and your own exhalation turns against you. You can get an anti-fog coating on your lenses, but it’s not always available if you have a complex prescription or other lens coatings, and it will. they only last about 1-2 years. You’re better off just using one of the many wipes, sprays, and gels available to prevent fogging, or just deal with the occasional discomfort.
Recommendation: Probably jump.
Blue light blockers
All the screens we look at throughout the day emit “blue light,” a frequency of visible light that has been shown to have a negative impact activated our health in general. So getting a coating that filters out this blue light might seem like a good idea. But there’s actually no evidence that a blue light coating will do you any good: most of the problems we experience with our eyes after a long day of staring at screens have nothing to do with blue light. This coating won’t do you any harm, but it probably won’t do you any good either.
There are other coatings you can get, such as a mirror coating that tints your lenses, keeping them opaque so people can’t see your eyes (but doesn’t block any light entering your eyes like sunglasses do) or transition coatings that darken the lenses in response to light, transforming the glasses into sunglasses. These coatings are just a personal choice – if you want cool colored lenses or hate having separate sunglasses to switch back and forth with, go for it.
In the end, you don’t need any of these coatings (your glasses will do their job just as well without them) and the only coating that is a good choice for everyone is the anti-scratch coating. Otherwise, consider how you live and how you use your glasses before paying for them.