Although SilkVision does not currently have an optical shop or deal in glasses on a regular basis, we understand that knowing when you need new glasses is not always easy, and we love to help inform our readers. Your glasses may be comfortable, stylish, and part of your whole identity. But changes in your vision are hard to detect, and just because you can see through your glasses does not mean they provide an optimum viewing experience for long-term eye health. So whether you notice symptoms or not, you may need new glasses asap. Here a