Emergency eye conditions include red eye, eye pain, foreign objects, trauma, chemical injuries, and sudden vision loss. If an eye is injured, hold a clean cloth on it, bandage any cuts to prevent infection, and do not rub or flush the eye. Do not try to remove any embedded objects. Seek immediate medical care for chemical burns by continuously rinsing the eye with water for 10-15 minutes. Symptoms of acute angle-closure glaucoma like eye pain, nausea, headache, and blurred vision require calling an ophthalmologist right away. Sudden vision loss or blindness also necessitates prompt evaluation by an eye specialist.