Dr. Diana B. Kattan, O.D.

Dr. Kattan earned her Doctor of Optometry degree (Cum Laude) from Southern California College of Optometry (SCCO) at Marshall B. Ketchum University in Fullerton, California. She received a Bachelor of Science degree in Biological Sciences with honors from the University of California, Irvine. While at U.C. Irvine, she participated in undergraduate research to investigate the mechanism of protein aggregation in the human crystalline lens – that is, how cataracts form and the potential for their reversal.

Dr. Kattan received training at many Southern California optometry clinics including California Eye Specialists, Ketchum Health, University Eye Center of Los Angeles, and Castle Family Health Center. She is certified by the National Board of Examiners in Optometry and is licensed by the California Board of Optometry. She especially enjoys fitting contact lenses ranging from medically necessary specialty lenses to daily wear contact lenses.

Dr. Kattan enjoys volunteering with various optometry charitable organizations including VOSH (Volunteering Optometric Services to Humanity) and has been on medical missions abroad, most recently to Peru where she served on a brigade providing eye care to a medically indigent rural community.

Outside of work, Dr. Kattan enjoys spending time with her family and friends. Some of her hobbies include food adventures, cooking, nature walks, playing tennis, and painting.

As your optometrist, Dr. Kattan promises to treat you with compassion and the highest standard of care. Don’t let life get blurry, visit your optometrist!

Our goal is to provide superior vision and patient care.
All of our opticians are certified by the American Board of Opticianry (ABOC).
  • To provide the highest-quality lenses possible to our patients.
  • To ensure patient comfort while wearing their glasses.
  • To provide patients with the best vision possible.
  • To give superior eye protection.
Mosier Eye Center will do its very best to meet your eyeglasses or contact lenses needs. Our patients are given a wide selection of eyeglass frames, lenses and contact lenses to choose from in our Optical Shop. A full service lab is available to prepare the lenses for patients while they wait.


Monday-Friday – 8:30 – 5:30
Saturday-Sunday – Closed

Make An Appointment

To schedule or reschedule an appointment, call 714-871-2570. Outside business hours, please email us. If you have any comments about your visit please share them with us.