Thank you for your reply.
It's likely that one or more of the tiny blood vessels inside your eye ruptured do the brief increase explosive intraocular pressure from vomiting. In general, it will re-absorb and clear without any intervention, but it can take weeks to months sometimes. However, other concerns such as impending retinal detachment or severe posterior vitreous detachment need to be excluded by your eye doctor with a good dilated eye exam.
If you are currently taking aspirin or other blood thinner like coumadin, dipyridamole, etc, you should stop them until you get evaluated. In addition, avoid severe valsalva or belching, such as severe coughing or vomiting. Avoid lifting heavy weights (>50LBs). It's also important that your blood pressure stay controlled at this time. So, please plan to see your eye doctor within the next few days for a dilated eye exam. However, if you notice worsening of vision, pain or more black spots, flashes or floaters, then please go to the nearest ER and request evaluation by on-call eye doctor. I trust that you will do well.
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Please note that this answer is for information only. It cannot be substituted for the visit to or the recommendation of your doctor.
Edited by Dr. Stan on 11/7/2009 at 7:23 PM EST