The 39-year-old actress started needing prescription spectacles two years ago, and said she has harboured a life-long desire to wear glasses in a bid to look smart, reported Daily Star.
"I started to need reading glasses two years ago but the funny thing is I used to want glasses so badly when I was little that I actually used to stare at the sun to damage my sight.
"I was obsessed with looking smart. I also went through a stage in junior high where I would wear non-prescription reading glasses and then I got caught out one day so I stopped that because I felt like a phoney. So as of two years ago I just started needing them. I love them. Wearing glasses adds and instant quirk and elegance," Mendes said.