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Meet the Doctors


Dr. Noah Eger is a therapeutic optometrist who has been treating his patients since 1997. Dr. Noah earned a Doctorate of Optometry from the Pennsylvania College of Optometry with honors and has multiple specialties and interests in addition to primary care optometry.

Dr. Timothy Corcoran graduated from the Pennsylvania College of Optometry in 1985. Since then, Dr. Tim Corcoran has been practicing primary care and therapeutic optometry in Moon Township and now Coraopolis. Dr. Tim provides eye care for senior citizens as part of Life Pittsburgh.

Dr. Holly Caputy joined our practice in May 2012. She completed her Doctorate of Optometry at Pennsylvania College of Optometry at Salus University in 2012. She graduated from optometry school with the highest clinical honors.

Dr. Amber Mersing (formerly Ewonce) joined The Eger Eye Group in 2020. She graduated from Nova Southeastern University in Fort Lauderdale, Florida in June 2020. She graduated from optometry school with the highest clinical honors, providing cutting-edge training and education.

Dr. Veronica Constantine earned early admission to the Pennsylvania College of Optometry after obtaining her degree in Chemistry from Washington and Jefferson College. She received a second degree in Visual Science from the Pennsylvania College of Optometry and a Doctor of Optometry in 1987.

Dr. Brenna Bish (formerly Gerchman) has recently relocated to Pittsburgh to be with her Husband, a western Pennsylvania native and a member or the 171st Air National Guard. She graduated from University of Maine with a B.S in Biology in 2016. Dr. Brenna continued her education at Illinois College of Optometry and graduated in 2020.

Dr. Ryan Henger’s full bio is coming soon!

Dr. Ryan Henger graduated with a Bachelor of Vision Science from Ferris State University in 2017 and completed his Doctor of Optometry in 2020 from Michigan State University.  He brings with him years of experience in primary and pediatric eye care, vision therapy, specialty contacts as well as a specialty in ocular disease.

Dr. Zachary Austin joined Eger Eye Group in July 2026. He earned his B.S. Biology (Pre-Optometry) from Clarion University in 2022 where he graduated the top of his class in the College of Arts & Sciences and Summa Cum Laude. Also, he was a member of the Tri Beta Biology Honor Society, Phi Eta Sigma Honor Society, and the National Society of Leadership & Success.