There are a few reasons why smart people might wear glasses. First, wearing glasses can help improve your vision. If you have poor vision, glasses can help correct your vision and make it easier to see. Second, glasses can help protect your eyes from harmful environmental factors, such as UV rays from the sun or harmful blue light from screens. Wearing glasses can help reduce your risk of developing vision problems in the future. Finally, glasses can intellectual look and make you appear more studious. If you want to project an image of intelligence and sophistication, wearing glasses can be a simple and effective way to do so.