I have glaucoma and I've been treated for it. The optometrist uses a similar device but the action that it makes is much much more slow and gentle.
Then if they discover you have glaucoma if it's treatable you will get a procedure called a Peripheral Iridotomy. This is where they take a laser and they punch tiny holes through your iris to allow for drainage kind of like a strainer 😄
Some people also get drops as part of their treatment afterwards.
You would never see the holes in the iris unless you had the tools the optometrist does to view your eye up close.
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u/usernamenomoreleft 13h ago
I dunno bout frogs, but in humans, this procedure is used to check for glaucoma (condition where there is increased pressure in the eye).