I'm seriously thinking on multifocal lenses for the next winter. It's OK when there is lots of light, but, when it gets darker, I need reading glasses to do my rounds, but, I can't ride my bike wearing the reading glasses. Taking them off after every delivery is no option. And, when it gets darker, I could do with glasses for looking in the distance too.
Got a few reading-glasses home now. Cheap ones. Not as many as my Dad. But, he is a bit older than me. He has plenty, and different strengths for every occasion. Reading, computer, gardening, driving.