![]() we can also confirm that the image being shared on social is fake. While rare, some may experience a tear in the iris due to trauma or an eye disease that causes it to 'split'. Pupula duplex is not a medical term that we are aware of. The American Optometric Association (AOA) sent us an email on February 18, 2022, calling the Facebook image "fake": ( Source: Acta Ophthalmologica Scandinavica, True polycoria or pseudo-polycoria? screenshot taken on February 18 18:21:09 2022 UTC) ![]() These holes are usually just a defect of the iris and may cause some glare. Other patients have so-called 'false' polycoria, where holes in the iris appear as two or more pupils, but only one actually works. Surgery can help some people with true polycoria. This can cause poor, dim or double vision. In the early history of China, double pupils were seen as a. 1 It results in decreased function of the iris and pupil, affecting the physical eye and visualization. 1 It may be congenital or result from a disease affecting the iris. Each pupil has its own sphincter muscle and they individually constrict and dilate. Polycoria is a pathological condition of the eye characterized by more than one pupillary opening in the iris. People with 'true' polycoria have two or more separate pupils in one or both eyes. The clinical name for someone with two pupils is polycoria. In a February 17, 2022, email, a representative from the American Academy of Ophthamology (AAO) explained that this is a real phenomenon, but with a different name. ![]() The author of this post has not provided any sources or links to verify the term they used: "Pupula duplex." (Source: Facebook screenshot taken on Thu Feb 17 17:35:24 2022 UTC) This is what the post looked like on Facebook at the time of writing: The text under the image of two pupils in one eye reads: The Pupula duplex is a medical oddity that is characterized by having two pupils in each eyeball. The claim appeared in a Facebook post (archived here) on February 15, 2022. It also does not look like the picture in the Facebook post below, which is a doctored image. The clinical term for someone with two pupils is polycoria, not pupula duplex. Is the eye condition of having two pupils in one eye real? Yes, that's true: It's an extremely rare condition, but it exists. ![]()
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