I agree with everyone, get checked out, it could be serious. Do you have any headache pain associated with it?
I have not had what you are describing, but after my surgery there were several times when I had instant shooting pain in one eye, like someone stabbed a knife into a nerve in my eye. I also had, and continue to occasionally have, partial blindness in one eye due to migraine-style auras. I don't get a migraine but have the visual disturbances for 15-30 minutes. My surgeon said he didn't do anything to effect my eyes and said if I was concerned I should visit an optometrist. I know lots of people on VR.com have the aura issue post surgery. I never found out what caused the stabbing pain, fortunately that stopped.
Dee, please get this problem checked out. And post what you find out.
Best,