Dr. Jella An is a board-certified ophthalmologist and a fellowship-trained glaucoma specialist who primarily sees adult patients diagnosed with cataracts or glaucoma. Dr. An specializes in a leading-edge micro-invasive glaucoma surgery and is one of the few providers to offer this service in mid-Missouri.

Ophthalmology Surgical Training Video Resources

Education & Training

Medical School

McGill University



  • McGill University Faculty of Medicine



  • University of Toronto Faculty of Medicine


American Board of Ophthalmology

Commercial Relationships and Collaborations

This faculty member or a member of his or her immediate family has a working relationship, such as providing consulting, research, or educational services, with the companies listed below. These relationships have been reported to the University of Missouri and, if appropriate, plans have been established to address potential conflicts. The following relationships were reported as of July 2020.

  • Ivantis
  • Aerie
  • Allergan
  • Iridex
  • New World Medical


MU Health Care participates with most major managed care organizations. To find out whether MU Health Care is a participating provider in your insurance plan or network, or for information on co-payments and deductibles, please contact your insurance carrier directly.

In the News

Dr. Jella An Discusses Minimally Invasive Glaucoma Surgery with KRCG

Academic Information

Assistant Professor of Ophthalmology
Medical Director, University Eye Institute East
Director, Glaucoma Service and Anterior Segment AUPO Fellowship Program
Director, Continuing Medical Education, Departmental Representative, School of Medicine Diversity Committee

Research Profile

Glaucoma — a group of eye conditions that damage the optic nerve and can result in vision loss and blindness — affects more than 200,000 Americans each year. There is no cure, but early detection and treatment can often protect against serious vision loss. An, a board-certified ophthalmologist and fellowship-trained glaucoma specialist, works to help patients affected by glaucoma.

A skilled eye surgeon, An performs procedures to treat the disease — including micro-invasive glaucoma surgery (MIGS). Previously, patients with mild-to-moderate glaucoma had limited options; MIGS is creating a new avenue for treatment for these individuals. An also conducts research to advance glaucoma treatment, including modulation of post-operative wound healing and improved long-term surgical outcomes. In 2015, she completed a Clinical Fellowship in Glaucoma and Advanced Anterior Segment Surgery (used to treat glaucoma and complex cataracts) at the University of Toronto.

In addition to glaucoma procedures, An performs both simple and complex cataract surgery and treats patients as a clinician at MU’s Mason Eye Institute. For her excellence in the clinic and the laboratory, she has won multiple recognitions including the Young Clinician Scientist Award from the American Glaucoma Society.

Dr. Jella An is medical director of University Eye Institute East and directs the Glaucoma Service and Fellowship Program at the School of Medicine.

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Research Interests

  • Micro-invasive glaucoma surgery (MIGS)
  • Novel surgical interventions and drug delivery in glaucoma
  • Post-operative wound healing modulation
  • Medical student and resident mentorship

Areas of Expertise

  • Glaucoma and cataract surgery
  • Micro-invasive glaucoma surgery (MIGS)
  • Glaucoma laser treatment

Awards & Honors

Selected lists of Awards

  • 2017: American Glaucoma Society Young Clinician Scientist Awards
  • 2016: American Glaucoma Society Mentoring for Advancement of Physician-Scientists (MAPS) Awards
  • 2014: Surgical Skills Graduation Awards for Best Resident Surgeon, Department of Ophthalmology, McGill University Faculty of Medicine
  • 2009: Dr. Mark Cohen Prize in Ophthalmology, McGill University Faculty of Medicine
  • 2009: Medical Research Bursary, McGill University Faculty of Medicine
  • 2006: Canadian institutions of Health Research (CIHR) Health Professional Research Award, McGill University
  • 2005: Dean's Scholarship, McGill University Faculty of Medicine


  • M. Hirabayashi, V. Ponnusamy, J. An. Predictive Factors for Outcomes of Selective Laser Trabeculoplasty. Sci Rep 10, 9428 (2020)

  • M. Hirabayashi, D. Smith, J. An. Biostatistics 101: Perspective on Statistics in Ophthalmology. JOJ Ophthalmology. 2019; 7(5):555724

  • M. Hirabayashi, D. Lee, J. King, S. Thomsen, J. An. Comparison of Surgical Outcomes Of 360° Circumferential Trabeculotomy Versus Sectoral Excisional Goniotomy With the Kahook Dual Blade At 6 Months. Clinical Ophthalmology. 2019; 13:2017-2024

  • D. Lee, J. King, S. Thomsen, M. Hirabayashi, J. An. Comparison of Surgical Outcomes Between Excisional Goniotomy Using the Kahook Dual Blade And iStent Trabecular Micro-Bypass Stent in Combination with Phacoemulsification. Clinical Ophthalmology. 2019; 13:2097-2102.

  • M. Hirabayashi, L. McDaniel, J. An. Reversal of Toric Intraocular Lens-corrected Corneal Astigmatism after Kahook Dual Blade Goniotomy. J Curr Glaucoma Pract 2019;13(1):42-44.

  • M. Hirabayashi, T. Rosenlof, J. An. Comparison of successful outcome predictors for micropulse laser trabeculoplasty and selective laser trabeculoplasty at 6 months. Clinical Ophthalmology, 2019. 

  • M. Hirabayashi, J. King, D. Lee, J. An. Outcome of phacoemulsification combined with excisional goniotomy using the Kahook Dual Blade in severe glaucoma patients at 6 months. Clinical Ophthalmology, 2019. 13:715-721.

  • T. Berk, J. An, I. Ahmed. Inadvertent cyclodialysis cleft and hypotony following ab-interno trabeculotomy using the trabectome device requiring surgical repair. Journal of Glaucoma, 2017. 26(8): 742-746.

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