Background: Advances in rigid-lens telescope systems provide an alternative method for magnification and illumination that may replace or supplement the operating microscope.
Objective: To evaluate the clinical utility of an exoscope system as an alternative to the operating microscope.
Methods: A custom-designed 10-mm-diameter rigid-lens telescope with a focal distance of 20 cm was attached to a 3-chip high-definition digital camera and displayed on a high-definition video monitor during surgery.