I (70 yo female) have Blepharospasm, which causes my eyes to spasm shut involuntarily. Nevertheless, I frequently took brisk 3 miles walks without worry until my eyes closed while descending cement steps. I fell on my face and lost my two front teeth.
At the dentist I first learned I had advances osteoporosis (-3.6)!
Now I really try to slow down and be more careful, because a fall would be dire( I’m about to start Evenity to strengthen my bones), and I wear a smart watch that contacts help if I fall.