December 4, 2025
Knock Knock Eye: Why Are My Eyes So Sensitive to Light?
Knock Knock, Hi! with the GlaucomfleckensAbout this episode
This week I ran into something online that made my ophthalmologist brain short-circuit: a brand-new CDC statement about autism and vaccines that… let’s just say does not follow how science actually works. So I’m breaking down the logic, the frustration, and why “prove it’s not true” is one of the worst arguments in medicine. Then, because I can only rant for so long before needing to retreat into eyeball science, I walk through two new “Signs & Symptoms” differentials, light sensitivity and anisocoria. Plus, I got strep throat on a cross-country flight, which I do not recommend at age 40. Takeaways: Why the CDC’s new autism/vaccine phrasing misunderstands the entire concept of scientific evidence. How to think about light sensitivity like an ophthalmologist (hint: start with the cornea). A simple trick for figuring out which pupil is the abnormal one in anisocoria and why it matters. Why strep throat hits like a freight train once you’re over 35, especially in the middle of a business trip. A reminder that neuro-ophthalmologists are magical creatures who can diagnose a Horner syndrome with nothing but a dark room, a penlight, and an unreasonable amount of patience. To Get Tickets to Wife & Death: You can visit Glaucomflecken.com/live We want to hear YOUR stories (and medical puns)! Shoot us an email and say hi! knockknockhi@human-content.com Can’t get enough of us? Shucks. You can support the show on Patreon for early episode access, exclusive bonus shows, livestream hangouts, and much more! – http://www.patreon.com/glaucomflecken Also, be sure to check out the newsletter: https://glaucomflecken.com/glauc-to-me/ If you are interested in buying a book from one of our guests, check them all out here: https://www.amazon.com/shop/dr.glaucomflecken If you want more information on models I use: Anatomy Warehouse provides for the best, crafting custom anatomical products, medical simulation kits and presentation models that create a lasting educational impact. For more information go to Anatomy Warehouse DOT com. Link: https://anatomywarehouse.com/?aff=14 Plus for 15% off use code: Glaucomflecken15 -- A friendly reminder from the G’s and Tarsus: If you want to learn more about Demodex Blepharitis, making an appointment with your eye doctor for an eyelid exam can help you know for sure. Visit http://www.EyelidCheck.com for more information. Today’s episode is brought to you by Microsoft Dragon Copilot. Dragon Copilot is an AI clinical assistant that streamlines documentation, surfaces critical information, and automates routine tasks — empowering healthcare teams to focus more on patients and less on administrative work. Learn more at https://glau.cc/Dragon Produced by Human Content Learn more about your ad choices. Visit megaphone.fm/adchoices