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.
Best Answer: Generally, dilation of the pupil will last for three to six hours and will primarily affect your near or close up vision. However, it is not uncommon for dilation to last up to 24 hours for some patients depending on the eye drops used to achieve dilation. Different eye drops are used for various ages of patients. Most patients can drive home after their eye exam, and sunglasses are encouraged to be worn.