great for bells palsy [SEP] i purchased this to help shield my eye while suffering from bells palsy i highly recommend having one if you are going through the same on windy days it allows you to go outside without having to hold your eye closed it also as the name suggests holds in some moisture though it fogs up a bit this is well worth the clouded view to know that not all the moisture is lost from an eye that cannot blink or make tears in the early weeks this allowed me to drive as taping an eye shut made my depth of field a joke the elastic was a bit too long for me but i simply tied a knot in the back to make it tighter