By Maria Azzurra Volpe

Copyright newsweek

A post shared last Monday has captured the attention of thousands on social media after a Las Vegas cat owner noticed something unusual in her feline’s eyes.The Reddit post, shared by u/Standard_Biscotti835 in the u/ragdolls subreddit, features a photo of the blue-eyed ragdoll named Mina with one pupil noticeably smaller than the other. The caption reads: “Anybody seen this happen before?”Mina’s owner told Newsweek that the sudden change happened on Sunday evening. “Mina is my 1-year-old ragdoll fur baby princess,” she said. “I went into the kitchen to make dinner, turned on the light, and saw her eyes looked strange.”Worried, she called her local veterinarian in Las Vegas, who advised her to take the feline to emergency vet immediately, as this could be a sign of brain bleeding.What followed was a nerve-wracking five-hour ordeal. “They tried several times to draw blood for tests, and she wasn’t having it,” Mina’s owner said. “They ended up sedating her, and after all that stress, we were told all her tests came back normal and healthy. Her eyes were already starting to go back to normal,” which was comforting to the poster.Mina has since returned to her usual playful self, with no lingering symptoms. “She seemed a bit annoyed for a while, but is all back to her normal self—eyes dilating and looking normal again,” her owner shared.The sudden change in Mina’s pupils, where one appeared smaller than the other, is a condition called anisocoria, and it can be a symptom of many issues, ranging from harmless to life-threatening.Dr. Ashly Smith, a veterinarian at Small Door Veterinary, previously told Newsweek that anisocoria can be a result of eye injury, inflammation, glaucoma, neurological problems, high blood pressure, or certain infections.Smith said that sudden onset anisocoria should always be taken seriously. “Sudden anisocoria can signal an urgent problem, so the cat should be seen by a vet promptly to determine the cause and begin treatment if needed.”The video quickly went viral on social media and has so far received over 9,900 upvotes and more than 570 comments on the platform.One user, Tippertoes, commented: “This warrants an emergency vet visit if sudden and unexplained.”Dojo_shlom0 posted: “I believe it’s the same with people. If you see something like this happen with a person, go straight to the hospital. could be a head injury, or stroke, etc.”Do you have funny and adorable videos or pictures of your pet you want to share? Send them to life@newsweek.com with some details about your best friend, and they could appear in our Pet of the Week lineup.