Yes, yes, yes...see an Opthamalogist right away not an ER doctor. Having just been through a retinal detachment nightmare, I went to an Optometrist first and that was a mistake. My retinal specialist has told me since, when it's your eye go to the specialist FIRST, you can lose precious time that can make a difference if there is a problem. The Opthamalogist (not Optometrist - big difference) is your best bet and if you need another kind of specialist from there, he can send you there.
Find an ophthalmologist rather than going to the ER.
Dr. O.