2024-01-18
The Short Answer
Yes, for most people. But not for the reasons you usually hear in the sales pitch.
Anti-reflective coating (AR coating) is one of those upgrades that gets pushed hard at optical shops. And honestly, a lot of the selling points are overblown. But the core benefit is real: it eliminates the light that bounces off the front and back surfaces of your lenses. That reflected light is what causes glare, ghosting at night, and that annoying thing where people see a reflection of the ceiling lights instead of your eyes in photos.
What AR Coating Actually Does
Without any coating, a standard plastic lens reflects about 8% of light that hits it. That means 8% of available light never reaches your eye. More importantly, that reflected light bounces around inside the lens and creates internal glare, especially noticeable when driving at night or working under fluorescent lights.
AR coating reduces that reflection to under 1%. The practical effects:
- Night driving gets noticeably clearer. Oncoming headlights still suck, but the halo and starburst effect around them shrinks significantly. This is the single biggest real-world benefit.
- Screen work is more comfortable. Less internal reflection means less competing light hitting your retina while you stare at a monitor.
- Your lenses look better. Without AR, lenses have a visible greenish or whitish sheen. With it, they look almost invisible. People see your eyes, not your lenses.
- Slightly sharper vision overall. That extra 8% of light transmission adds up. Most people describe it as everything looking just a little crisper.
The Honest Downsides
Here is where most optical shops get quiet. AR coating has real trade-offs:
It shows fingerprints and smudges more
This is the number one complaint. Because the coating eliminates reflections, any smudge on the lens surface becomes much more visible. Without reflections to mask them, every fingerprint stands out. Good AR coatings now include an oleophobic (oil-repelling) top layer that helps, but your lenses will still need cleaning more often than uncoated ones.
Cheap AR coatings can peel and craze
Low-quality AR coating can develop a web of tiny cracks (crazing) after a year or two, especially if exposed to heat. If your optician is offering AR coating for $30, be cautious. A good multi-layer AR coating from a reputable lab costs more for a reason. We recommend Crizal or similar premium options because they hold up over the life of the lens.
It adds cost
Depending on the tier, AR coating adds $80 to $200 to your lenses. For a basic pair you plan to replace in a year, that might not make sense. For your primary everyday glasses, it usually does.
Who Should Definitely Get It
- Anyone who drives at night regularly. This alone justifies the cost.
- Anyone who works at a computer more than a couple hours a day. The reduced internal glare genuinely helps with eye fatigue.
- Anyone with a strong prescription. Higher-powered lenses reflect more light, so the difference AR coating makes is more dramatic.
- Anyone who does a lot of video calls or public speaking. People can actually see your eyes instead of a reflection of their own screen.
Who Can Probably Skip It
- Kids under 10. They scratch and lose glasses constantly. Put the money toward a better warranty or a second pair instead. Once they are old enough to take reasonable care of their glasses, add it.
- Backup pairs you barely wear. If it is a spare pair that lives in your glove box, basic lenses are fine.
- Very low prescriptions. If your lenses are thin and weak, the reflection issue is minimal. You will still benefit, but the difference is subtle.
What About Blue Light Coating?
Blue light filtering is a separate thing from AR coating, though they are often bundled together. The evidence that blue light from screens damages your eyes is weak. The evidence that it disrupts sleep is stronger but still debated. Most blue light coatings add a slight yellow tint and reduce a small amount of blue wavelength transmission.
If you want it, fine. But do not let anyone sell you blue light coating as a substitute for AR coating. They do different things. AR coating has clear, measurable optical benefits. Blue light coating is more of a "might help, probably will not hurt" situation.
Alberta Health Coverage Note
Alberta Health Care covers eye exams for children and seniors, but lens coatings are not covered under any provincial plan. If you have employer benefits through Alberta Blue Cross, Sun Life, or similar, some plans do cover coatings as part of your eyewear allowance. Check your plan details for the total dollar amount covered rather than looking for coating-specific coverage.
The Bottom Line
AR coating is one of the few lens upgrades that delivers a real, noticeable difference in daily use. It is not magic, and the premium versions cost real money. But for your primary pair of glasses that you wear every day, it is worth it. Just make sure you are getting a quality multi-layer coating, not the cheapest option available.