Blog

Person sitting in an office with eye examination equipment, a computer displaying 'Calgary Vision Centre,' and a large screen showing a cityscape.

Dr. Robert Burke is an optometrist and co-founder of Calgary Vision Centre, known for pushing the boundaries of what’s possible in eye care. With over 17 years of experience, he brings an unrivaled level of curiosity to the intersection of optics, physics, math, and human vision. His work blends cutting-edge technology with a drive to rethink traditional approaches to eye health. This blog is where some of those big questions and the fascinating deep dives they spark, come to life.


How to see Mt. Everest from the United States (Sort of)
Robert Burke 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
Robert Burke 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
Robert Burke 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?
Robert Burke 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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Why Your Vision Feels Glitchy After a Concussion—And How to Get It Back on Track
Robert Burke Robert Burke

Why Your Vision Feels Glitchy After a Concussion—And How to Get It Back on Track

After a concussion, vision feels glitchy—blurry text, light sensitivity, motion issues. The problem isn’t your eyes; it’s your brain running a buggy update. Like a frozen computer, it’s stuck in an infinite loop. The fix? Contoured prism glasses act like Ctrl-Alt-Del, instantly resetting your visual system. Here’s how.

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If the Calgary Saddledome was made of glass
Robert Burke Robert Burke

If the Calgary Saddledome was made of glass

Frequently patients ask me why their glasses’ lenses are thick on some edges and thin on the other, and I typically respond that because they have astigmatism their lenses have two types of curvature on each lens, just like the Calgary Saddledome. But that got me thinking, what if the Saddledome was a lens, what prescription would it have?

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A cool trick to show people how bad your eyesight is
Robert Burke Robert Burke

A cool trick to show people how bad your eyesight is

It can be challenging to demonstrate to someone how you actually see without your glasses. You can’t just give them your glasses to try on since their eye will automatically try to clear them up (and possibly kick start a headache). But it turns out pretty much every smartphone has built in feature that does an excellent job in truly capturing how bad you see when your glasses are off.

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