Voted Best Optometrists in San Ramon

Dr. William To has multiple years of healthcare experience providing design-based ocular care, with an optometric emphasis in Pediatrics, Dry Eye Therapy, and Ocular Surface Disease.

He graduated from UC San Diego with a Bachelor’s in Human Biology and a minor in Psychology and earned his Doctorate in Optometry from Western University of Health Sciences. Dr. Will is regularly invited to several Optometric Conferences and Colleges of Optometry each year to lecture to his colleagues and students, having given over 100 lectures and written several published editorials.

When he’s not caring for his amazing patients, Dr. Will enjoys traveling every chance he gets. As a Bay Area native, he has taken on leadership roles both in the local community and beyond, serving as the President of the Santa Clara County Optometric Society and on several California Optometric Association and American Optometric Association committees. He is actively involved with a variety of community outreach and social programs.

Dr. Will is an avid Golden State Warriors and 49ers fan.

Certifications & Recognitions:
NBEO Board Certified
TLG Glaucoma Board Certified
Brilliant Futures Myopia Management Certified
Paragon Corneal Refractive Therapy Certified
Zenlens Scleral Lens Certification
Shamir Freeform Progressive Certified
American Board of Opticianry (ABOC) Certified
Inmode Envision Lumecca/Lumecca-I IPL Certified
Inmode Envision Forma-I Radio Frequency Certified
Bausch + Lomb Contact Lens Expert
Gold Key International Honor Society Leadership Award Recipient 2016
Joy.Energy.Time Top 50 Most Influential Healthcare Professionals 2019
AOA Presidential Advocacy Service Award Recipient 2021
Contact Lens Institute Visionary 2021
International Association of Healthcare Professionals Top Optometrist 2021
Santa Clara County Optometric Society Young OD of the Year 2021
California Optometric Association Young OD of the Year 2022
Newsweek America’s Best Eye Doctor Top 200 Optometrist 2023

Dr. Katalina Yandell earned her Bachelor of Science in biology from Northern Arizona University. Not only was she one of their top students, but it was there she found a passion for helping others and giving back to her community.

Dr. Kat, who is a native Seattleite, loves to travel and jumped at the opportunity to live in sunny Southern California to earn her Doctorate in Optometry from the Western University of Health Sciences. She received numerous awards for her achievements in political activism, leadership among her peers, and passion for private practice optometry.

Dr. Kat currently serves on the Board of Trustees of the Santa Clara County Optometric Society, and in her spare time, she enjoys reading books, traveling to new places, and playing with her cute cats Zedd and Gizmo.

Certifications & Recognitions: 
NBEO Board Certified
TLG Glaucoma Board Certified
Brilliant Futures Myopia Management Certified
Vision Shaping Treatment VST Certified
Paragon Corneal Refractive Therapy Certified
WAVE Contact Lens System Designer Certified
Inmode Envision Lumecca/Lumecca-I IPL Certified
Inmode Envision Forma-I Radio Frequency Certified
NaturalVue Certified Fitter
Transitions Change Agent
Beta Sigma Kappa International Honor Society Award

Dr. Vanessa Cerda is a Bay Area native that achieved her Bachelor of Science in Biology at San Francisco State University and Doctor of Optometry at UC Berkeley. She currently works as an Optometric Intern at Optical Illusions and assists in patient care and staff training. Dr. Vanessa gained her clinical experience at the Stanford Byers Eye Institute, San Rafael Community Clinic, and the Livermore Veteran Affairs Clinic. She is a member of the American Optometric Association and the California Optometric Association.

In her free time she enjoys attending concerts, snowboarding in the winter, traveling, and playing with her frenchie, Bowser.

Certifications & Recognitions:
Paragon Corneal Refractive Therapy Certified
Brilliant Futures Myopia Management Certified
Inmode Envision Lumecca/Lumecca-I IPL Certified
Inmode Envision Forma-I Radio Frequency Certified
Beta Sigma Kappa International Honor Society Award

Khanh Nguyen is an accomplished and goal-driven Operations Manager who has a decade of optical experience. She loves to think outside the box and enjoys being creative. What keeps her driven is that all patients who walk out of Optical Illusions will have the optimum level of service and care and will be satisfied with their experience. She has expertise in selecting the best fit and style of frames for different faces worldwide. On the back-end, she enjoys diving into corporate strategy and is continuously learning on how to improve business growth. She graduated at the University of California Santa Cruz with a major in Biology and by chance ended up working in the Optical field.

Khanh Nguyen is a jujitsu and cross-fit enthusiast who loves to take road trips with her family. You can usually find her car camping in Pismo beach which is one of her favorite spots. In her free time, she loves to fish up North but nothing beats her experience fishing for salmon at the Russian River in Alaska.

Certifications & Recognitions: 
PECAA Office Management Course (OMCC) Certified
Inmode Envision Forma-I Radio Frequency Certified

Azil is an Optician at Optical Illusion of San Ramon, who has an aspiration of helping patients as a future eye doctor. He works with patients now with their pre-testing in preparation for their comprehensive eye exams and then with frame and lens selection afterwards. Azil is currently an undergraduate student working towards his Bachelor’s Degree in Biochemistry.

Azil is also an avid painter who produces fascinating artwork. When he is not painting, he is playing soccer, competing in billiards, or working out in the gym. On his spare time, Azil also enjoys kicking back with his family and friends.

Certifications & Recognitions:
Brilliant Futures Myopia Management Certified
Paragon Corneal Refractive Therapy Certified

Yocelin is a dedicated and compassionate Paraoptometric at Optical Illusions. With expertise in assisting optometrists, she provides exceptional patient care. Known for her attention to detail and communication skills, she creates a comforting environment for patients. In her free time, she enjoys doing acrylic nails and watching mystery documentaries.

Certifications & Recognitions:
Brilliant Futures Myopia Management Certified
Paragon Corneal Refractive Therapy Certified

Tim is an Optician at our San Ramon office who enjoys educating and working with patients select the best eyewear for their needs. Outside of the office, he is a talented and award-winning writer. His contributions to Riff Magazine helped them win first place in the News/Political Columns category for the 2022 San Francisco Press Club awards. Tim also writes screenplays and songs in addition to his journalistic contributions. Tim has previously worked in Radio as well, having created and hosted the show “Graveyard Shift” for KZSC while attending UC Santa Cruz.

Irma has been in the optical industry for over 16 years. She is incredibly patient-focused, detail-oriented, and computer-savvy. She currently lives in Gqeberha, formerly known as Port Elizabeth, South Africa. When she is not working, Irma loves spending time exploring the outdoors with her husband in her free time.

Certificates & Recognitions:
Dr. Contact Lens Technician of the Month – March 2023

Xz earned her bachelor’s degree in pharmacy at Davao Doctors College Philippines. Her passion towards serving community landed her to gain 4 years of experience as a Community Pharmacist. Her goal to offer excellent patient care increases her enthusiasm to be continuously equipped in offering diligence and compassion in every client transaction. After completing her Healthcare virtual assistant training and certification process, she is more than ready to take on any challenges.

In her free time, she likes playing with her dogs, reading self-help books, and spending time with her family.