Meet the Iris Team

We are proud of the team that we have collected to help you at Iris Optometric Center. It is comprised of ophthalmologists, optometrists and opticians, all of whom are highly trained and skilled vision experts


Barbara DeVane, D.O.


Dr. DeVane is a Board Certified Ophthalmologist with over 15 years' experience diagnosing and treating patients with medical ophthalmic complaints. She has a special interest in facial aesthetics, including Botox and Fillers. Dr. DeVane grew up in North Canton, OH and received her Bachelor of Science degree from Ohio University in Athens, OH. She then attended Medical School at Heritage College of Osteopathic Medicine at Ohio University, where she received her medical degree. She completed her internship and ophthalmology residency at Doctors Hospital in Columbus, OH where she was named Chief Ophthalmology Resident. She moved to the Bay Area in 2000 and enjoys spending time with her husband and three daughters. Her hobbies include tennis, travel, watching sporting activities, and crafts.


Page Yarwood, O.D.




Karen Graham, M.D.


Karen Graham is an experienced and accomplished board certified ophthalmologist. She specializes in cataract and glaucoma surgery. Dr. Graham studied at Stanford as an undergrad and Baylor College of Medicine for her doctorate. She did a residency at the renowned Jules Stein Eye Institute and received a Glaucoma Fellowship with Dr. Marc Lieberman, California Pacific Medical Center; and Dr. Robert Stamper, University of California. Dr. Graham has practiced ophthalmology in the bay area for over 20 years. She has presented and published her research in “American Journal of Ophthalmology” and others.


Ashley Craven, O.D., FAAO


Dr. Craven is a Northern California native committed to excellent ocular health and personalized optical care.  She received her Doctor of Optometry from the University of California Berkeley, graduating with honors in research. She subsequently completed a residency at the San Francisco VA Medical Center focusing on disease management.  She then returned to UC Berkeley, where for several years she taught lecture and clinic courses in contact lens and primary care. Dr. Craven is a fellow of the American Academy of Optometry. She enjoys spending time with her husband and kids, as well as hiking, traveling, listening to podcasts and sewing.


Patricia R. Hernandez, OD, TPG


Dr. Hernandez has over 18 years of professional experience providing extensive needs to eye patients. She received her Doctorate in Optometry from the University of California, Berkeley and her undergraduate degree in Biochemistry from California Polytechnic State University. Dr. Hernandez has been involved throughout the bay area community and has been specialized in cataract and glaucoma treatments and other therapeutic procedures in an ophthalmology practice. Dr. Hernandez has devoted her knowledge to help those in need of better care when it comes to vision. She speaks fluent English and Spanish and is TPA certified.


Kristina Avery

Optician + Office Manager

Kristina is our resident Optician and Office Manager in Oakland.  If you find it difficult to find frames that look great on you, ask Kristina. She’s an expert at choosing just the right shape and color that will flatter you and accommodate your prescription. Kristina is dedicated to customer service, and focused on the best care for our patients.