Meet our Physicians

Together, the physicians of The Retina Group have over 60 years of experience treating retinal diseases and all anticipate practicing retina and uveitis care for decades to come. 

E. Mitchel Opremcak, MD

Specializes in vitreo-retinal disease, uveitis, and ocular immunology.

Currently sees patients in the downtown, Mt. Carmel East, and Mansfield offices

Alan J. Rehmar, MD

Specializes in disease and surgery of the retina and vitreous.

Currently sees patients in the downtown, Mt. Carmel East, Zanesville, and Mansfield offices

Chet D. Ridenour, DO

Specializes in vitreo-retinal diseases.

Currently sees patients in the downtown, Mt. Carmel East, and Zanesville offices

Lisa M. Borkowski, MD

Specializes in vitreo-retinal diseases.

Currently sees patients in the downtown and Mt. Carmel East offices