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Our Location

2845 Cochran Street, Suite D
Simi Valley, CA 93065

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Welcome To Our Online Practice!

Our team of eye doctors and eye care staff are here to care for all of your vision needs. We take pride in building lasting relationships with our patients, which is why we take the time to get to know you, your vision requirements and your lifestyle needs.

What's Happening?

Pink, Stinging Eyes?

It Could Be Pink Eye.

Welcome to our New Website

Visit our new optometry website for information about our Practice.

Welcome to Diamond Optometric Center

Eyes are important indicators of overall health, and comprehensive eye care goes beyond a prescription for glasses or contact lenses. At Diamond Optometric Center, we take the time to get to know you, your eye care history, and your vision needs. Our optometrists provide the expert care, advice, options, and follow up you need whether you are a new patient or an existing one.

Great Eyewear and Eye Care in Simi Valley, CA

From our office in Simi Valley, Diamond Eye Optometry serves patients from California’s Ventura County – schedule an appointment today. If you have a moment, please give us your feedback about our site and your experiences with our Practice.

What Our Patients Are Saying...

Meet Our Doctor

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Jonathan Mak, O.D.

Dr. Mak was born in Vancouver, Canada and moved to Simi Valley with his family before his 9th birthday. It was in Simi Valley that he was prescribed his first pair of glasses likely because of his voracious appetite for...
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Joanne Parungao, O.D.

Dr. Parungao is originally from Des Plaines, Illinois which is about 20 miles northwest of Chicago. She received a Bachelor of Science in Biology and Chemistry from Northern Illinois University in 2003. She decided to pursue a career in optometry...

Focus Your Attention On These Key Areas

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Comprehensive Eye Exams

Learn about eye exams, what’s involved in a comprehensive exam, and special considerations for kids and contacts.

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Focus on Eyeglasses

We will help you find the best fit for your specific needs and explain how different lenses and frames will impact your vision.

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Advanced Technology

Learn about the different types of tests and equipment you may experience on a visit to our Practice.

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Looking for an Optometrist in Simi Valley, CA?

Our optometrists take the time to explain the results of your eye exam, describe your options and listen to your eye care needs. Because maintaining good eye health is an ongoing partnership, we encourage you to ask questions and share your health information, which could be vital to monitoring, diagnosing and treating potential vision problems.

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Diamond Optometric Center

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2845 Cochran Street, Suite D
Simi Valley, CA 93065

  • 9:00 AM - 6:00 PM
  • 9:00 AM - 6:00 PM
  • Closed
  • 9:00 AM - 6:00 PM
  • 9:00 AM - 6:00 PM
  • By Appointment Only
  • Closed

***We are closed one Saturday per month, please call for details.

Pink, Stinging Eyes?

It Could Be Pink Eye.

Welcome to our New Website

Visit our new optometry website for information about our Practice.