Our Vision Care Providers

Our Doctors

Our Ophthalmologist Surgeons


Vance Thompson, M.D. is an internationally recognized specialist in laser vision correction (LASIK) and advanced cataract surgery. He is the director of refractive surgery for Vance Thompson Vision in Sioux Falls, SD.


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


Michael Greenwood, M.D. is a Fargo, ND board-certified ophthalmologist specializing in glaucoma, cornea, and laser vision correction (LASIK) surgery.


Russell Swan, M.D. specializes in advanced cataract, corneal, glaucoma, and laser vision correction (LASIK) surgeries in our Bozeman, MT office.


Dr. Brandon Baartman is a board-certified ophthalmologist in Sioux Falls, SD specializing in surgeries of the anterior segment, including corneal surgery and laser vision correction surgery.


Dr. Deborah Ristvedt is a third-generation, board-certified ophthalmologist leading the team at our Alexandria location.

Our Optometrists


Dr. Doug Wallin is an optometrist in our Sioux Falls office. He has developed special skills in providing advanced clinical care in refractive, corneal, and cataract surgery.


Dr. Keith Rasmussen specializes in eye and vision care at Vance Thompson Vision and is very passionate about helping patients enrich their eyesight.


As one of the Vance Thompson Vision's dedicated optometrists, Dr. Jason Schmit has more than 20 years of experience with laser vision correction and cataract procedures.


Dr. Justin Schweitzer is a fellowship-trained optometrist specializing in the treatment of glaucoma, corneal-related vision conditions, and cataracts in Sioux Falls, SD.


Dr. Mitch Ibach, an optometrist at Vance Thompson Vision in Sioux Falls, SD since 2014, performs advanced anterior surgery care and pathology services for his patients.


Dr. Mathew Walker specializes in the treatment of dry eye and glaucoma, as well as diabetic eye health at Vance Thompson Vision in Alexandria, MN.


Dr. Nick Risbrudt specializes in anterior segment surgical care including cataracts, corneal diseases, glaucoma, and refractive surgeries at Vance Thompson Vision in West Fargo, ND.