Welcome to Crum Optometric Group
Your Optometrist in Chino Hills, CA

Call us at (909) 393-8378 today.

Welcome to Crum Optometric Group in Chino Hills. Dr. Jon Crum and the Crum Optometric Group team strive to provide the best in optometry services. We invite you to browse our website to learn more about our optometry services and join our patient family by scheduling an eye exam appointment at our Chino Hills office.

Crum Optometric Group is a full service eye and vision care provider, accepting both eye emergencies as well as scheduled appointments. Patients throughout the Chino Hills area come to Crum Optometric Group because they know they will receive the personal attention and professional care that is our foundation. Dr. Crum and our team are dedicated to keeping our patients comfortable and well-informed at all times. At Crum Optometric Group, we will explain every exam and procedure and answer all of our patients' questions. Additionally, at Crum Optometric Group, we offer vision financing options and will work with vision insurance providers to ensure good eye health and vision care for all of our patients.

Our Approach to Optometry

Our one-on-one approach to optometry makes Dr. Crum and the Crum Optometric Group staff the eye and vision care providers of choice in the Chino Hills area. Our Chino Hills optometrist offers the following services: complete eye exams, contact lenses, glasses, glaucoma testing, and pre- and post-operative care. For a complete list of services, visit our services page or call our Chino Hills office at (909) 393-8378.

At Crum Optometric Group, we are dedicated to providing high-quality optometry services in a comfortable environment.Call us at (909) 393-8378 or schedule an appointment today online.

Dr. Jon Crum and Dr. Rich Yang 
Chino Hills Optometrist | Crum Optometric Group | (909) 393-8378
2581 Chino Hills Parkway Ste C
Chino Hills, CA 91709

Meet The Staff

Learn Who We Are

  • Dr.
    Jon M. Crum

    Dr. Crum, OD completed his undergraduate work by gaining a Bachelor of Science degree in psycho-biology from UCLA. He attended Southern California College of Optometry where he graduated with honors. Besides keeping up to date with the latest advances in eyecare, he is currently very active in many political ventures with optometry to help foster the advance of the profession.

  • Dr.
    Rich Yang

    Rich Yang, O.D. graduated from the University of California, San Diego with a Bachelor of Science degree in Human Biology. He received his Doctorate of Optometry with honors from the Southern California College of Optometry at Marshall B. Ketchum University. During his time at optometry school, Dr. Yang had the privilege to work with all different types of patients ranging in all ages and demographics. He’s seen kids as early as 6 months old and has worked with veterans in the veterans affair hospitals. He has also had the opportunity to work with the San Diego Padres doing vision screenings with the players and working with them on sports vision therapy. He has been thoroughly trained to meet the needs of his patients and loves the opportunity to help improve their lives. Dr. Yang has also volunteered his time to help provide free eye care to the under-served in Guatemala and Mexico, as well as several communities across Southern California. Besides optometry he loves spending time on the golf course, working to lower his handicap and is a diehard Lakers fan.

  • Jackie Blake
    Optician/Optical Manger

    Optical Manager

  • Joanne Ruiz

    Frame Expert

  • Nora Witt


  • Lyanne Colvin


  • Lisa Carmona



Community Content


Reviews From Our Satisfied Patients

  • "Dr. Crum is a true professional and his staff is amazing! I cant believe I've lived in Chino Hills for over 20 years and now I finally made a visit. I'm extremely happy with the glasses and service. A+!"
    Randolph O / Chino Hills, CA

Featured Articles

Read up on informative topics

  • How To Read Your Eyeglass Prescription

    Have you ever wondered what your eyeglass prescription says about your vision? ...

    Read More
  • Are Floaters A Sign Of Something Bigger?

    Worried about floaters? Find out when this common vision symptom can be a sign of a serious problem. ...

    Read More
  • Frequently Asked Questions

    Why do I need to see an eye care provider? Many “silent” diseases, such as glaucoma and diabetes, can only be detected through regular eye exams. When these conditions are discovered earlier rather than later, they become easier to treat or manage, allowing for better long-term preservation of eyesight. ...

    Read More
  • Pediatric Ophthlamology

    Ophthalmology addresses the physiology, anatomy and diseases of the eyes. Pediatric ophthalmology focuses on the eyes of children. Pediatric ophthalmologists examine children’s eyes to see if they need corrective lenses or other treatments to improve their vision. Training for Pediatric Ophthalmologists Pediatric ...

    Read More
  • Allergies

    Caused by the same irritants as hay fever, runny nose, coughing, and sneezing, eye allergies commonly affect those who suffer from other allergy symptoms. Not only do eye allergies cause discomfort, but they can also interfere with daily activities. Eye Allergy Causes Medically referred to as allergic ...

    Read More
  • Learning-Related Vision Problems

    Learning disabilities may include dyslexia, math disorder, writing disorder, auditory processing deficits, or visual processing deficits. Although each child with a learning disability is unique, many also have associated visual problems. Addressing these vision disorders may alleviate some symptoms ...

    Read More
  • UV Radiation and Your Eyes

    Optometry warnings about the damaging effects of ultraviolet radiation on our eyes have not yet reached the degree of public awareness of that of skin damage. Yet, the sun can be just as damaging upon our eyes with unprotected exposure. Short-term exposure to very bright sunlight can result in a type ...

    Read More
  • How To Protect Your Eyes While Wearing Halloween-Themed Contact Lenses

    Spooky novelty contact lenses can make your Halloween costume even scarier, but are they safe? ...

    Read More
  • Fuchs' Corneal Dystrophy

    Fuchs' dystrophy (pronounced fooks DIS-truh-fee) is an eye disease characterized by degenerative changes to the cornea’s innermost layer of cells. The cause for Fuchs' dystrophy is not fully understood. If your mother or father has the disease, then there is roughly a 50 percent chance that you will ...

    Read More
  • Age-Related Macular Degeneration

    One of the leading causes of vision loss in people who are age 50 or older is age-related macular degeneration (AMD). This common eye condition leads to damage of a small spot near the center of the retina called the macula. The macula provides us with the ability to clearly see objects that are straight ...

    Read More

Newsletter Signup

Sign up for more articles