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Knock Knock Eye: What Does an Abnormal Red Reflex Really Mean?

I’m trying something new: differentials. Each episode, I’ll pick one ocular sign and one ocular symptom, and walk you through everything that could cause them. This week: the mysterious “abnormal red reflex” and the all-too-common “my eyes are burning.” From cataracts and retinoblastoma to blepharitis and bad makeup glue, I’m breaking down the real possibilities, one red, irritated eyeball at a time. It’s part med school, part comedy, and yes, you might just become an honorary ophthalmologist by the end of it.

Takeaways:

Why an “abnormal red reflex” might mean anything from cataract to…

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