I have Retinitis Pigmentosa. This may sound like the Latin for some exotic garden plant but unfortunately is actually a genetic disease that causes the cells in the retina in the back of the eye to give up the ghost in varying patterns with no fixed timetable and often several side effects..the most annoying one being eventual blindness. Right now I have a very limited tunnel of vision which blurs and distorts occasionally during the day depending on light and stress. My peripheral sight, what’s left of it is a white out. Additional blurring is due to a secondary condition called macular odema which is extremely annoying but at least comes and goes unlike the RP which kills the cells and then leaves them lying around like a load of old garbage blocking the remaining view.