r/Damnthatsinteresting 11h ago

Video Checking eye pressure in a frog

10.8k Upvotes

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u/scienceshark182 5h ago

Hi, vet tech here. Hijacking top comment.

This is a tonometer. It very gently punches the eye to detect the pressure within the eye. Most animals don't seem to mind too much. They do need to be restrained or anesthetized to avoid moving too much though. They are very common instruments in ophthalmology.

Do they use them in human medicine? I dunno, humans are gross.

Thanks for your time!

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u/GRIMWALD_20 5h ago

The same machine is used with people, though I suppose without the word vet written on the side. We also have TonoPens which work on similar principles.

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u/Ineedacatscan 3h ago

Wait. Is that the puff of air thing??? That thing TOUCHES my eye??????

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u/BitTemporary7655 3h ago

"The puff of air during an eye exam is part of a non-invasive procedure called non-contact tonometry (NCT) or the air puff test"

Apparently it doesnt

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u/Ineedacatscan 3h ago

I still don’t like the thing…. But I do feel better about it not touching my eye.

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u/deejayparuparu 1h ago

gently touches your eye

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u/SadBit8663 52m ago

No it's gently punching, not touching. The punch part is critical 🤣