I had retinal detachment surgery one year ago at the University of Iowa. The surgeons did a beautiful job and I had an uneventful recovery. I still have 20/20 vision in that eye. They are ranked 5th in the U.S. for clinical eye care. If you live within driving distance, I recommend that you go there immediately today for emergency evaluation. If not, go to the nearest major eye center. Both the floaters and the light flashes are warnings of possible impending retinal tear or detachment. The flashes indicate traction on the retina. Have you checked whether you also see them in a darkened room? They're hard to see with your eyes open and the lights on. Regardless of your financial situation, I would not wait. I'm sure you will later regret not going, if you lose sight in that eye. I believe the cost of my surgery was $12,000. It's worth $12,000 to save your sight. You could work out an installment plan for payment. Please call today before the weekend to see the best retinal specialist you can.