About Risco Diana OD

Risco Diana OD provides thorough and pleasant eye care experiences. The staff is attentive, helpful, and enthusiastic, making patients feel at ease. The office is conveniently located inside Costco, and appointments are efficient. Patients appreciate the easy check-in process and quick testing at the appointment. The team is patient and respectful, taking the time to address all questions and concerns. Dr. Kim Nguyen and Dr. Duong are noted for their kindness and thorough examinations. Overall, patients are pleased with their care and the way the doctors explain everything about eye health. Many plan to return for future appointments, especially for follow-ups and to learn how to manage contacts.

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Reviews for Risco Diana OD

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  • Mar 2026

    Dr.Diana was very on top of everything! I was nervous to come in as I haven’t had my eyes checked in a long time. But the second I stepped foot into her office she made me feel very comfortable and seen! 10/10 would come back just for Dr.Diana. She was really great and amazing. Same with Brian who helped us find our glasses in the optical department. He was really patient and answered all of our questions we had. Very excited for my new glasses to come in.

  • Dec 2025

    Dr Duong was very informative about cataract surgery and the options I should have been given back in 2008. (My ophthalmologist at the time made decisions w/o informing me.)
    I felt very comfortable during the exam, and he and the staff are great folk.

  • Dec 2025

    Dr. Risco was extremely kind and thorough! I had never had an eye exam that was that detailed and thorough, she made sure that every base was covered and that the prescription was exactly right for my sight. Will definitely be coming back and would definitely recommend her over any other Costco optometrist in OC.

Hours

Monday: 10AM - 7PM
Tuesday: 10AM - 7PM
Wednesday: 10AM - 7PM
Thursday: 10AM - 7PM
Friday: 10AM - 7PM
Saturday: 9:30AM - 5:30PM
Sunday: 10AM - 5PM

Tips

accessible parking near entrance ada-compliant main entrance accepts cash accepts credit cards accepts insurance women-owned open to all

Location

11000 Garden Grove Blvd, Garden Grove

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