North Iowa

Specialists in Eye Surgery

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Bradney L. Carter, D.O.



Dr. Carter was born and raised in Utah. He attended the University of Utah where he obtained his undergraduate degree.  He received his medical degree form Edward Via Virginia College of Osteopathic Medicine in June 2011 and completed his Ophthalmology residency at Ohio University College of Osteopathic Medicine in June 2015.


Dr. Carter and his wife, Holli, have been married since 2003 and have four children.  He enjoys athletics, weight lifting, food and spending time with family.


Eye examination Sue Kline 
Clinic Administrator Vonda Capper, O.D. 
Optometrist Kent H. Juffer, O.D. 
Optometrist Melissa Summerfield, M.D. 
Ophthalmologist Brandt M. Riley, D.O. 
Ophthalmologist Mark D. Meyer, M.D. 
Ophthalmologist Randall S. Brenton, M.D. 

Take advantage of our 6 board certified surgical ophthalmologists and 2 therapeutically certified optometrists on staff, along with 30 employees, many of whom are certified ophthalmic or optometric assistants.

Meet our experienced team:

The North Iowa Eye Clinic was founded in the 1920's by Dr. Steve O'Brien and continues to be this area's most advanced diagnostic and surgical eye clinic. In the 1950's, Dr. O'Brian was joined by Dr. Harry Alcorn, who continued his practice with the clinic until his retirement in the mid-1980s.


The clinic experienced further growth throughout the 1970's with the inclusion of Dr. Addison Brown, (deceased), and Dr. Michael Long (retired).  In 1991, Dr. James Dummett joined the clinic and retired in 2010.


As our clinic has continued to expand, we've focused on providing exceptional procedures and treatments to keep up with the latest technological advances. No matter how advanced our service becomes, our desire remains to ensure that our patients receive the best possible care.

Call today or come down and see us!

Randall S. Brenton, M.D.



Dr. Brenton is a native of Mason City and received his medical degree from the University of Iowa with a degree in ophthalmology. He did a transitional internship at Gundersen Clinic in LaCrosse, Wisconsin. Dr. Brenton completed a 6-month research fellowship, at the University of Iowa, in glaucoma with visual field research. While at Iowa, he developed flicker fusion as an office testing of optic nerve function. He returned to Mason City in 1988 to join the North Iowa Eye Clinic. He is certified in LASIK and Phototherapeutic Keratotomy (PTK).


Dr. Brenton's wife, Cheryl, is also from Mason City, and they were married in 1980. They have three children, Claire, Janet, and Eric. His hobbies include wildlife art, fishing, and canoeing.

Mark D. Meyer, M.D. 



Dr. Meyer was born in Hartley, Iowa. He received his B.S. in Biology from Buena Vista College in Storm Lake. Dr. Meyer attended the University of Iowa and received his Master's degree in hospital and Health Administration in 1993. He went on receive his medical degree and M.B.A. in 1997. He completed his Ophthalmology residency at the University of Wisconsin in 2001.


Dr. Meyer and his wife Ann, who was born in Storm Lake, have been married since 1992. They have four children. He enjoys athletics, fishing, and gardening.

Brandt M. Riley, D.O.



Dr. Riley is a native of Lincoln, Nebraska and attended Nebraska Wesleyan University where he obtained an undergraduate degree in Biology. He received his medical degree from Kirksville College of Osteopathic Medicine in 2004 and completed his Ophthalmology Residency at Ohio University College of Osteopathic Medicine in June 2008.


He and his wife Renee have been married since 1999 and have two sons. Dr. Riley's interests include athletics, outdoor activities, and Nebraska Cornhusker football.

Melissa Summerfield, M.D.



Dr. Melissa Summerfield grew up in Clinton, IA. She obtained her undergraduate degree at Luther College in Decorah. IA. She continued her education by receiving her masters in psychology from University of Northern Iowa and her medical degree from Creighton University. She completed her residency at Eastern Virginia Medical School in Ophthalmology.


Dr. Summerfield and her husband have two sons. She enjoys running, photography, and kayaking.

Kent H. Juffer, O.D.



Dr. Juffer is a staff Optometrist at the North Iowa Eye Clinic / Village Green Optical.


Dr. Juffer is a native of Decorah, Iowa. He is a 1975 graduate of the University of Minnesota with a B.S. degree in Zoology, and he is a 1979 honor graduate of the Illinois College of Optometry.


Dr. Juffer and his family have resided in Mason City since 1985. His interests include hunting, fishing, trap shooting, and canoeing.

Vonda Capper, O.D.



Dr. Vonda Capper is a staff Optometrist at North Iowa Eye Clinic / Village Green Optical.


Dr. Capper is originally from West Branch, Iowa. She graduated from Iowa Wesleyan College in Mount Pleasant, Iowa with a B. S. in Life Science. She is a 1994 graduate of Illinois College of Optometry in Chicago, Illinois.


Dr. Capper and her husband, Kevin have lived in Mason City since 1996. They have three children, Meghan, McKenzie, and Kylee. Her hobbies include athletics, camping, and knitting.

Sue Kline

Clinic Administrator  


Susan Kline, C.P.A. is a native of Mason City.  She graduated from NIACC and Buena Vista with a B.S. degree in Accounting and practiced in public accounting for 17 years prior to joining the North Iowa Eye Clinic in 2003.


Susan and her husband D.J have two children, Chloe, and Carter. Her hobbies include running, reading and shopping.

Our clinic

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