The Efficiency of Ophthalmic Ambulatory Surgery Centers.

Ambulatory surgery centers (ASCs) are important providers of ambulatory surgeries. However, little research exists examining the efficiency of ASCs in providing ambulatory surgical services. This study examined the technical efficiency of ASCs that concentrated on performing cataract surgeries, which are among the surgeries most commonly performed in the outpatient setting. This study, based on data from all active ASCs that provided the two most common cataract surgeries in California, found that a large proportion of ophthalmic ASCs were operating at low technical efficiency levels. The amount of slacks in input and output variables was estimated for each ASC, and the mean slacks were reported. The numbers of cataract surgery patients and operating rooms were found to significantly affect the efficiency of ophthalmic ASCs.