You Won’t Believe What’s Really Hurting Your Patients’ AR Coatings

By Jon J. Trutt

Published: 2/27/2026

As an ECP, you’ve most likely experienced a patient bringing in their “brand new” pair of glasses, only to open the case and reveal a horribly disfigured, twisted frame that may or may not be still holding the lenses. And right on cue comes the classic line:

“I just opened the case and they were like this.” 🤦

We all get a good laugh out of it.

Now take that same thinking and apply it to your lab’s AR coatings.

More often than not, patient handling is the real culprit behind AR coating failures.

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Why AR Coatings Fail Over Time

Anti-reflective (AR), or anti-glare coatings are engineered, multi-layer systems designed to improve clarity, reduce glare, and enhance cosmetic appearance. But they’re not indestructible. No AR coating on the market is completely scratch-proof or smudge-proof, no matter how advanced the branding sounds.

Over time, all coatings are subject to wear. The key difference is how quickly that wear shows up, and that almost always comes down to environment and handling.

Let’s break down the most common failure types.

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1. Crazing

AR Crazing

Crazing looks like tiny cracks or a spiderweb pattern across the lens surface. It’s typically caused by extreme temperature changes.

Examples:

• Leaving glasses on a car dashboard in summer heat

• Bringing glasses from freezing outdoor temps into a warm building

• Exposure to high heat during cleaning

AR coatings and lens substrates expand and contract at slightly different rates. When the temperature swing is extreme enough, microscopic fractures can form in the coating layers.

This isn’t a lab defect; it’s thermal stress.

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2. Peeling or Delamination

AR Peeling

Peeling usually starts at the edges and works its way inward. The most common causes?

• Exposure to very hot or very cold temperatures

• Cleaning with harsh chemicals (ammonia, alcohol, household cleaners)

• Long-term UV exposure

• Moisture intrusion over time

When patients use window cleaner, disinfectant wipes, their shirt, or abrasive paper towels, they’re slowly compromising the integrity of the coating stack. Even some lens cleaners labeled “alcohol-free” can still contain alcohol-based ingredients, so it’s important to do your homework before recommending a product to your patients.

UV light and moisture also break down coatings gradually. Over time, that environmental exposure can weaken adhesion between layers, especially if the lenses aren’t cared for properly.

It’s worth noting:

If peeling is due to a manufacturing defect or bad batch of coating materials, it typically shows up within the first couple of months and affects multiple jobs, not just one isolated pair.

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3. Scratching

Lens Scratches

Even premium AR coatings are not completely scratch-proof.

One of the biggest causes of scratching?

Wiping lenses when dust, dirt, or debris are still sitting on the surface.

Even with a microfiber cloth, rubbing debris across the lens acts like sandpaper. The correct method is:

1. Rinse lenses under lukewarm water first

2. Use approved, solvent-free lens cleaner. For heavier buildup, a small dab of Dawn dish soap works great for deep cleaning lenses. Just use a tiny amount, gently rub with your fingers, and rinse thoroughly with lukewarm water.

3. Then gently dry with a clean microfiber cloth

Skipping that rinse step is where damage often begins.

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Storage Matters More Than You Think

Since we can’t follow patients around all day, we can’t truly know how they’re storing their glasses.

Are they:

• Tossing them into a bag without a case?

• Leaving them in a hot car?

• Setting them lens-down on countertops?

• Cleaning them with whatever is closest to the sink?

If you’re not seeing the same issue with other patients wearing the same coating, the difference is likely individual care and handling.

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A Real-World Example

AccuLab's Poseidon Ultra AR Coating After 3 Years of Regular Use & Proper Care

I’ve seen patients return lenses claiming “AR failure” within a two-month period. Meanwhile, I’ve personally worn my own pair with AccuLab Optical’s Poseidon AR for over three years with no peeling, no crazing, and no scratching.

Same coating. Same technology.

The difference? Proper cleaning and storage.

That’s not marketing. That’s proof that care makes a measurable difference in coating longevity.

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Yes, Defects Can Happen; But They’re Rare

Every lab knows that once in a while, a materials issue can occur. A bad batch of coating materials can cause early peeling or adhesion problems.

But when that happens:

• It usually appears within the first 1–3 months

• It affects multiple jobs

• It becomes quickly identifiable

Isolated coating failure after extended wear is almost never a systemic lab issue.

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The Bottom Line 👓

AR coatings are advanced, durable, and engineered to last, but they are not immune to:

• Heat

• Cold

• Chemicals

• UV exposure

• Moisture

• Improper cleaning

As ECPs, when you’re faced with a coating complaint, it’s worth stepping back and evaluating the full picture.

Before assuming a lab failure, consider patient handling. Consider environmental exposure. Consider cleaning habits.

Give your lab the benefit of the doubt - especially if you’re not seeing widespread issues with the same product. In most cases, coating breakdown tells a story, and it’s rarely the one that starts in the lab.

Proper education at dispense can go a long way toward preventing these conversations altogether. Reach out to AccuLab Optical if you'd like to learn more about AR or try our Atlantis Series Anti-Reflective Coatings for your patients.

• 800-688-3904

• info@acculab.net