Please don’t think this frivolous. Since my cataract surgery, I have light sensitivity. I have to wear self darkening lenses in my glasses and a hat with a brim. Usually this is a baseball or longbill fishing cap.. At 76, I don’t care much for fashion and look ridiculous in a fedora or porkpie. Lisbon is another country and I would like some advice about the local hats. Any ideas?