Potential environmental impact of reducing the variation of disposable materials used for cataract surgery.

There was a considerable variation in package composition and product size, which could provide opportunities to save CO 2 emissions in cataract surgery. If all Austrian eye departments were to reduce the material quantities and drape sizes to the lower third of the cataract packages used in the Austria in 2021, cataract package associated CO 2 emissions could be reduced by 34%.