i did not answer it as i did not know what it ment. i forget already but some CANADIAN sent me all the meaning of the meds. yes closing ones eyes can cause you to fall. i have known it for years. even when i save or wash my face i got to lean on some thing to keep from falling. one time VIVIAN was leaving a night club a nd the law stop us he want me to walk a line close my eyes so on i cary a card that says i do not drink and have PD. you are to take me to a hospital ot breath test. gave me a hard time. took me to jail. i said i would sue them if he would not apologize to me. I.Y.Q. DON & VIVIAN