Addressing Astigmatism in Refractive and Cataract Surgery


A specialist in advanced cataract surgery, corneal surgery, glaucoma surgery, and refractive surgery, Dr. John Berdahl will provide you with a cutting-edge understanding of astigmatism, including:

• New technologies for treatment
• Advantages and disadvantages of treatments
• Proper surgical management
• Common errors/problems in correction
• Using the right coding to get reimbursed


John Berdahl, MD
Assistant Professor of Ophthalmology
Sanford School of Medicine University of South Dakota
Vance Thompson Vision, Sioux Falls SD

John Berdahl, MD specializes in advanced cataract surgery, corneal surgery and glaucoma surgery, in addition to refractive surgery to correct nearsightedness, farsightedness and astigmatism.

He earned his medical doctorate, graduating with honors from Mayo Medical School in Rochester, MN. Dr. Berdahl has published numerous book chapters and peer-reviewed articles and his extensive research has been presented nationally and internationally. His commitment to those in need is demonstrated by his leadership role in EyeCare America (which provides free eye care to underserved) and the numerous surgical mission trips he continues to participate in worldwide.

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