Intraocular lens inventory management system in a geopolitical unstable environment

Objective: to develop and scientifically validate the feasibility of applying a lean intraocular lens (IOL) inventory management system under conditions of geopolitical instability. Material and methods. The study consisted of the steps of analyzing the distribution of IOL optical power, creating a mathematical model of the institution's need for IOLs, implementing the developed system, and evaluating its effectiveness under geopolitical instability from January 2022 to December 2023. Results . As a result of implementing the proposed approach, the volume of IOL purchases made in addition to planned orders decreased from 4.5% of requests in 2014-2015 to 0.2% in 2022-2023 (p