Just looking at my school photo from 1954 austerity Britain and I can see that at least one little girl had sticking plaster over one lens of her NHS (National Health Service) glasses. I seem to remember that was the standard treatment for ‘lazy eye’ in those days. Cover the good eye to make the other eye ‘work’ ! I don’t know if it did work but I’m sure Sally would have hated it!
All torque and no action!