Small pupils, also known as miosis or pinpoint pupils, can be caused by various factors, including drug use, poisoning, eye diseases, and injuries. The pupils naturally change size in response to light levels, but when they remain very small even in bright light, it can indicate an underlying issue. Some common causes of small pupils include the use of prescription opioids or narcotics, Horners syndrome, anterior uveitis, and drug overdose. Additionally, small pupils can be a sign of a larger health problem, and its important to seek medical attention if they consistently measure less than two millimeters across.
In summary, small pupils can be a symptom of various underlying conditions, and its essential to consult a healthcare professional for proper evaluation and treatment.
