Oculoplastic Surgeon

Zac Keenum, MD

Sioux Falls, SD

Dr. Keenum is a fellowship-trained oculoplastic surgeon who specializes in treatment of the eyelids and eye socket. He is dedicated to supporting patients’ well-being by providing trustworthy, compassionate care. Read More


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Meet Dr. Keenum

Dr. Keenum is an oculoplastic surgeon with a passion for science and artistry. He uses innovative techniques and advanced technology to bring excellent care to patients desiring plastic surgery around the eyes and face.

Before coming to Vance Thompson Vision, Dr. Keenum completed an elite two-year American Society of Ophthalmic Plastic and Reconstructive Surgery Fellowship (ASOPRS) at the University of Texas, Southwestern in Dallas, TX. His ASOPRS fellowship, one of the best in the country, provides a high level of experience in surgery of the eyelids and eye socket and makes him an expert in dealing with the unique challenges of surgery around the eyes.

Interests & Added Expertise

Dr. Keenum also leads Kalon Medical Spa in Sioux Falls, a medical spa that complements the oculoplastic surgeries he performs. Kalon offers a full menu of laser skin treatments for rejuvenating, restorative results.


  • Auburn University, Auburn, AL
  • University of Alabama School of Medicine, Birmingham, AL
  • Brookwood Baptist Hospital Intern Year Program, Birmingham, AL
  • University of Texas Southwestern Medical Center Residency, Dallas, TX
  • University of Texas Southwestern ASOPRS Fellowship, Dallas, TX

Awards & Honors

  • Phi Beta Kappa Honor Society
  • Alpha Omega Alpha Medical Honor Society
  • Lanning Kline Award for Ophthalmology
  • Fellow Teacher of the Year 2022
  • Texas Ophthalmologic Association
  • American Academy of Ophthalmology

Personal & Hobbies

Zac is so enthusiastic about how oculoplastics can help patients that he regularly films educational videos about surgical techniques, eye conditions, and emerging technology. He also enjoys painting abstract art and playing guitar. The certified scuba diver loves to travel the world with his wife, Rebecca, who is an allergist and immunologist.

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Prioritizing Research

Dr. Keenum has published multiple peer-reviewed articles on topics related to oculoplastics and ophthalmology. An innovator in the field, he helped design a surgical instrument that’s now used regularly for cases of ptosis, a condition in which the upper eyelid droops and restricts vision.

Our Research

Zac Keenum, MD Reviews

May 2, 2024

Services from the first appointment to the post-op exam were prompt, thorough and caring. I am so thankful Dr. Keenum was recommended for my services. He is an extremely skilled surgeon who does his best for his patients and takes time to provide needed and useful information.

March 15, 2024

Dr. Keenum did an awesome job with my upper eyelid surgery. Took 30 years off my face. He knows what he is doing!! Vance Thompson clinic also helped me with my dry eye and I had lipi flow treatment which helped a lot. That place is like a well oiled machine.

March 7, 2024

I’ve had the best experience at Vance Thompson. Dr Zac Keenum MD, the nurses and staff all made me feel relaxed and comfortable. Thank you

March 7, 2024

I had a great surgical experience with Dr. Keenum He has an impressive resume’ and a friendly, calming presence with patients. I’m glad he’s on staff at Vance Thompson Vision Clinic.

February 28, 2024

Dr Keenum did a great job from my initial consultation thru my procedure and follow up visit after. Made sure all my questions were answered and made himself available for anything going forward.

February 8, 2024

I recently had eyelid surgery with truly amazing results. My droopy eyelids are repaired and my field of vision is better than it has been in years! Thanks to Dr. Zac Keenum and the staff at Vance Thompson Vision! I am truly thankful we have such talented professionals to help us live our best lives.

January 24, 2024

Dr. Keenum was absolutely amazing for my upper Bleph surgery. My eyes look amazing and healed beautifully! He made the experience easy and as relaxing as possible! He was very thorough from the consultation all the way through the surgery! I could not be happier with the results!!

January 22, 2024

Dr. Keenum is a very talented doctor. He has a gift of assuring you that everything will be okay. I am very happy with the results and I would certainly recommend Dr. Keenum to my closest family and friends.

January 20, 2024

Dr Keenum is very professional yet personal. The surgical team all did a great job!!

Schedule a Consultation

Dr. Keenum looks forward to welcoming new and current patients. To schedule a consultation, simply call the number below or click Contact Us and we’ll be in touch shortly. We are honored by the opportunity to serve you.

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