CENTURION Vision System with ACTIVE SENTRY offers safety, stability, and consistency to cataract surgeons CENTURION Vision System with ACTIVE SENTRY is designed with advanced technology to help enhance confidence during surgery with lower, more physiological IOP and enhanced chamber stability, even in challenging cases.1-4 The ACTIVE SENTRY handpiece is the first and only phacoemulsification handpiece with a built-in pressure sensor5,6 ACTIVE SENTRY technology helps reduce post-occlusion surge and maintain stability in the anterior chamber by adjusting for IOP fluctuations7,8 Return Policy: Items are sold as-is with no returns or refunds available unless explicitly stated.