Were you having multiple episodes of these lighting bolts or just a one isolated occurance? Were there any floaters? Any pain? Any changes in vision?
I think you do need to get this one checked out. I've only had 1 patient in my career who had retinal detachment (which means its not common) but his symptoms were continues episodes of flashing lights. Because retinal detachment can be a serious issue if not found early enough, you should see your eye doctor as soon as possible.
You know I usually don't tell you to ask your doctor but this one should be checked out.
Retinal detachment can be painless and sometimes it doesn't even affect vision, it may just have these continues lighting episodes so, in order not to miss something important, you better check it out.
I have to log off now as I have to get home by 5:00 pm to relieve nanny but will log back on as soon as I get a chance at home, in case you have more questions.
If you see the eye dr, make sure to tell me what he/she said.