The treatment of miosis depends on the reason that you have miosis. Treating miosis often means that you must treat the underlying condition. For instance, if your pupils are small because of drugs you’ve taken, you’ll need to stop taking the drugs that cause pupils to constrict. Your provider may prescribe medications, often eye drops, to treat eye conditions like uveitis or iritis. These may include anti-inflammatory drugs like steroids or anti-infectives. Your provider might prescribe sumatriptan for cluster headaches. Your provider may recommend surgery if you have Horner’s syndrome that’s caused by tumors. Your provider may treat strokes with medications or procedures to bust or remove blood clots.