I am a 52 year old female, and for the past few weeks I notice fine, black, vertical lines whenever I close my eyes. They are close, like corduroy, and very fine. I first noticed it when soughing or sneezing, but upon closer observation, it occurs when I close my eyes for any reason, without any strain. They don't last, but are quite noticeable at first, and recur almost every time. Thank you for whatever light you can shed on this mysterious symptom. I do know it has been a couple of years since my eyes were checked....