There are a number of reasons why you might prefer contact lenses to standard eyewear: a glasses-free look, hassle-free vision correction, wearing non-prescription Sunwear and goggles, or the convenience of not having to worry about misplacing your glasses. If you have a high prescription or astigmatism, contact lenses may provide more enhanced vision correction than glasses. Today, you can even replace your bifocal glasses with bifocal contact lenses.