Acute toxicity is generally higher for inorganic arsenic compounds than for organic arsenic compounds. Oral intake of more than 100 mg is lethal. The lethal dose of arsenic trioxide is 10-180 mg, and for arsenide this is 70-210 mg. The mechanism of toxicity is binding and blocking sulphur enzymes.
Second, you can wear coloured-contacts that can constricts pupils. Third, you can stay in a brighter place to undilate your eyes faster. In all, if you really suffer from a dilated eyes, the healthy way is to wait until it undilated by themselves. 05/13/2013. good (1) Report Abuse.
Notify your doctor if you have had your pupil dilated and develop any of the following: 1  Worsening blurry vision: 2  When you focus on distant objects. 3  Eye pain.  Worsening 1  headache. Pupils stay dilated for more than 24 hours.  Increased sensitivity to bright light that lasts for more than 24 hours.