Fixed pupils, also known as fixed and dilated pupils, refer to a medical condition where the pupils of one's eyes remain abnormally enlarged regardless of the level of light. Synonyms for fixed pupils can include fixed and dilated pupils, dilated and unresponsive pupils, and mydriasis. While fixed pupils can be a result of various factors like head trauma, drug use, or a neurological disorder, their presence is typically indicative of a critical condition requiring immediate medical attention. In some cases, fixed pupils can be a symptom of severe brain damage or even impending death. It is crucial to be aware of these synonyms to better understand and communicate concerning ocular health.