Portrait of Cathy Sun
ucsf logo

Cathy Sun, MD

Glaucoma
Ophthalmology & Optometry Mission Bay
415-353-2020
Portrait of Cathy Sun
Portrait of Cathy Sun
ucsf logo

Cathy Sun, MD

Glaucoma
Ophthalmology & Optometry Mission Bay
415-353-2020

On this page

About me

Dr. Cathy Sun is an ophthalmologist who specializes in caring for adults with glaucoma. She performs a variety of laser procedures and surgeries, including minimally invasive glaucoma surgery, glaucoma filtering surgery and cataract surgery.

Sun's research focuses on using electronic health records and clinical trials to improve diagnosis and treatment of glaucoma and other chronic eye disorders. She has received research funding from the American Glaucoma Society and is currently supported by the National Institutes of Health.

Sun earned her medical degree and completed a residency in ophthalmology at UCSF. She completed a fellowship in glaucoma at Bascom Palmer Eye Institute. She received a merit award fellowship from the Heed Ophthalmic Foundation.

Sun is a member of the American Academy of Ophthalmology, Association for Research in Vision and Ophthalmology and American Glaucoma Society. In her free time, she enjoys running, gardening and exploring the outdoors.

Education & training

Board certification

  • Ophthalmology, American Board of Ophthalmology

Fellowship

  • Glaucoma, Anne Bates Leach Eye / Bascom Palmer Eye Institute

Internship

  • Internal Medicine, Childrens Hospital of San Francisco - GME

Degree

  • MD, UCSF School of Medicine

My expertise

Locations

    Reviews

    Average rating

    4.8
    4.8 out of 5 Stars
    78 ratings
    About provider reviews

    Showing 1-6 of 19 reviews

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    • 5 out of 5 Stars
      March 18, 2026

      Dr Sun delivers extraordinary care.All of my experiences with the opthamology clinic have been outstanding.Very grateful for their care, and kindness.

    • 3.1 out of 5 Stars
      March 12, 2026

      Making an appt is already hard to schedule and I felt rushed when I was seen by the MD.

    • 5 out of 5 Stars
      January 17, 2026

      Dr. Catherine Sun is caring, patient, knowledgeable, professional

    • 5 out of 5 Stars
      December 29, 2025

      Dr. Sun is an excellent Opthalmologist; very caring, understanding, patient, thorough, knowledgeable.

    • 5 out of 5 Stars
      December 10, 2025

      Excellent care

    • 5 out of 5 Stars
      December 4, 2025

      Listen and answer all me concerns and questions

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