A filing system for transparencies.

A system has been developed to facilitate filing of 2 inches X 2 inches Kodachrome slides. This is coordinated with a diagnostic and therapeutic index that allows for easy retrieval. Compact metal filing cabinets are used, eliminating the need for subsequent rearrangement of slides. The system also provides a method for recall of patients. Preoperative photographs are maintained in plastic folders and checked periodically until the postoperative photographs have been taken.