Blog

Most eyecare blogs are… well, boring. They read like recycled Wikipedia entries, thinly disguised textbook summaries, or clumsy ads pretending to be education. This blog is different. Here, eye health collides with physics, technology, and curiosity.

Dr. Robert Burke (optometrist and co-founder of Calgary Vision Centre) has spent over 18 years pushing the boundaries of what’s possible in eye care. Known for his obsession with optics, physics, and the math behind human vision, he brings an explorer’s mindset to every topic. Instead of repeating what’s already out there, he reframes the questions and chases the answers down unexpected paths.

This blog is where those deep dives come alive. It’s a place for people who want to understand not just what vision does, but why — and over a million readers have joined that journey so far.


Why “Ocular Migraines” Probably Aren’t What You Think
Dr. Robert Burke Dr. Robert Burke

Why “Ocular Migraines” Probably Aren’t What You Think

Ever been told you had an “ocular migraine”? Chances are, that is not what really happened. In this post, we break down what those zigzags and blind spots actually mean, why “ocular migraine” is usually a misused label, how to tell the difference between harmless aura and eye emergencies.

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Cataracts Are Coming for Us All: What You Need to Know About Surgical Lens Choices
Dr. Robert Burke Dr. Robert Burke

Cataracts Are Coming for Us All: What You Need to Know About Surgical Lens Choices

You're about to make an irreversible decision that affects how you see everything forever… no pressure.
Menus, text messages, sunsets, your grandkids' faces… all filtered through a lens you haven’t picked yet, and can’t return. Should you choose perfect clarity at one distance? Or decent vision at all distances with a few quirks? I built some simulations and visuals to help make sense of it. Because this isn't just about lenses it's about how you’ll see your life.

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Why 20/20 Vision Doesn’t Mean What You Think It Means
Dr. Robert Burke Dr. Robert Burke

Why 20/20 Vision Doesn’t Mean What You Think It Means

Most eye exams only test how well you see black letters on a white chart but real life isn’t high contrast. If you’ve ever “passed” your eye test but still struggle with night driving, glare from oncoming headlights, or foggy days, the problem might be your contrast sensitivity and there is a good chance its never been tested.

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What Budget Progressive Lenses Really Are: Expired Patents from 20 Years Ago
Dr. Robert Burke Dr. Robert Burke

What Budget Progressive Lenses Really Are: Expired Patents from 20 Years Ago

As patents expire, old lens designs are repackaged and sold as “new,” even though they were cutting-edge back when flip phones were still cool. This article unpacks how progressive lens tech has evolved, why modern vision needs demand modern optics, and what you're really getting when you buy progressive glasses from a big-box store or discount site.

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How to see Mt. Everest from the United States (Sort of)
Dr. Robert Burke Dr. Robert Burke

How to see Mt. Everest from the United States (Sort of)

Earth's atmosphere sometimes bends light in bizarre ways, letting sailors spot ships beyond the horizon and creating phantom sunrises in Antarctica. But could those same tricks stretch a sightline 30,000 kilometers across oceans and continents? We break down the physics, the math, and how big a landmark would have to be to pull it off.

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Don’t Sleep in Your Contacts
Dr. Robert Burke Dr. Robert Burke

Don’t Sleep in Your Contacts

You’ve probably seen the TikTok horror stories: someone nearly lost their eyesight after swimming in their contact lenses. But how likely is that really? Are eye doctors overhyping the risk of Acanthamoeba keratitis (AK), or are we just bad at understanding odds? This post cuts through the anecdotes and breaks down the real numbers behind AK and why your habits might make it more dangerous than riding without a seatbelt. Plus, try your luck with our AK risk simulator and see if you beat the odds… or not.

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Binocular Vision Dysfunction: The Weird Reason Your Eyes Might Be Giving You Headaches
Dr. Robert Burke Dr. Robert Burke

Binocular Vision Dysfunction: The Weird Reason Your Eyes Might Be Giving You Headaches

Ever wonder why focusing on a screen all day feels like running a mental marathon? It might be your eyes secretly fighting each other behind your back. Take a 10 second red dot test that could reveal a hidden vision issue affecting millions — and learn what it means if that dot jumps when you cover an eye. It’s weird. It’s science. It might change how you think about your eyes forever.

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What are these guys looking for?
Dr. Robert Burke Dr. Robert Burke

What are these guys looking for?

What could be of enough importance in 1962 that if it was lost, a regular season NHL game would halt mid-play and the players would drop down on their hands and knees and look for it?

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