Katzen Eye Group, a private eye care practice with offices in Lutherville/Towson, Rosedale, Bel Air and at Mercy Medical Center, has named Lisa Blum as senior director of retail optical operations. Blum previously worked at U.S. Vision, where she served as the district manager of the BJ’s Division for the past six years and had started up an AAFES Military Division. Blum has more than 25 years of district management experience in both the optical and retail fields. Blum has also served as aftermarket director/finance manager for Jones Junction/Towson Ford and district manager for Claire’s Stores.