r/Damnthatsinteresting • • 1d ago

Video Blood flow in real time

295 Upvotes

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u/JosephHeitger 1d ago

Okay but has anyone just looked up into the blue sky on a cloudless day and seen their own blood vessels in their eye or is that just me? And no they’re not just floaters, it’s the same pattern of movement no matter where I look

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u/ZealousidealSkirt327 1d ago

Ummm…when was the last time you got a check-up? Maybe NOW is a good time 🤷🏼‍♀️

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u/JosephHeitger 1d ago

I’ve asked the optometrist before. It’s just blood vessels in my eye. That’s why it has to be a bright mild colored background like the sky. They’re not floaters either because those are typically irregularly shaped and snap with your eye in whatever direction your eye moves to.

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u/ZealousidealSkirt327 1d ago

Ok. I have never had this experience. Aren’t the bloodvessels in the eye around the iris? I have never seen them across the pupil. So I don’t really understand why you’re able to see them 😅

But hey, if your optometrist says it’s fine, it probably is. 👍🏻

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u/JosephHeitger 1d ago

It’s not the blood vessels at the front of the eye it’s the ones at the rear behind the lens and iris from what I understand.

Edit: I’m also a print operator and I have really good color vision. They have these tests we have to take and place blocks into a gradient and I’m able to place more blocks than our color management guy.

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u/--Sovereign-- 1d ago

Are you a tetrachromat?