Dr. Colin Ridenour
Areas of Expertise
About Me
Dr. Colin M. Ridenour is a board-certified ophthalmologist at Grossnickle Eye Center providing comprehensive medical and surgical eye care. His interests include cataract surgery, management of glaucoma and diabetic eye disease, evaluation and treatment of macular degeneration, and medical retina therapies. Patients value his straightforward explanations and practical approach to vision preservation, from routine exams to complex decision-making about surgery or injections. Dr. Ridenour earned his undergraduate degree from Wabash College and his medical degree from the Indiana University School of Medicine, where he also completed ophthalmology residency. He serves patients across northern Indiana and collaborates closely with primary-care and optometric partners to coordinate care, optimize outcomes, and support long-term eye health for every stage of life.
Training

Ophthalmology
Indiana University School of Medicine
Residency
Medical Doctor (MD)
Indiana University School of Medicine
Medical School
BA
Wabash College
Undergraduate
Certifications & Licensure
- Licensed In
- IN
- License Numbers
- 11019222A
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