Prosopometamorphopsia (PMO) is a rare disorder causing facial distortions where features like mouths, noses, and eyes appear stretched or twisted, often described as “demonic” by patients. It affects the visual perception of faces but not other objects or body parts. Symptoms vary widely among the 80 documented cases, affecting different parts of faces (e.g., left or right sides), lasting from hours to years. Patients often isolate themselves due to fear of developing a mental illness and may be misdiagnosed with psychiatric disorders.
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