Petty Officer 3rd Class Neal Patrick, a hospital corpsman with 4th Medical Battalion and native of Dayton, Ohio, checks the distance between a patient’s pupils using a pupilometer during Innovative Readiness Training Arkansas Care, July 30, 2014. IRT Arkansas Care served the residents of a seven county area known as the Arkansas Delta region. The joint-service Reserve units provided a variety of general medical, optometry and dental services while simultaneously gaining the training they need for their military occupational specialty. - Petty Officer 3rd Class Neal Patrick, a hospital corpsman with 4th Medical Battalion and native of Dayton, Ohio, checks the distance between a patient’s pupils using a pupilometer during Innovative Readiness Training Arkansas Care, July 30, 2014. IRT Arkansas Care served the residents of a seven county area known as the Arkansas Delta region. The joint-service Reserve units provided a variety of general medical, optometry and dental services while simultaneously gaining the training they need for their military occupational specialty.