USM stands for Ultrasonic Autofocus Motor. These lenses offer manual focus override and fast, smooth and comparatively quiet ...

For last week's Question of the Week, we wondered what our community does with bad copies of lenses. Here's what you all had ...

PHOENIX — Opioid use following an isolated orthopedic trauma procedure may be negatively associated with in-hospital sleep and clinical outcomes, according to data presented at the Orthopaedic Trauma ...