Drs. Diana Yuen and Chong Yu welcome you to their full service optometry practice in Oakland's Grand Lake area. Our office is committed to providing all of your eyecare needs in a professional, efficient manner, and in a friendly, comfortable setting. The goal of our office is to become a lifelong partner in caring for you and your entire family. We specialize in delivering personal, knowledgeable eyecare using state-of-the-art automated equipment and the most technologically advanced optical materials available.