Cataract specialist Dr. David Chang is leading the drive to reduce medical waste generated during cataract surgery, one of the most common surgical procedures. In his talk at the AAO 2023 symposium on "Green Ophthalmology: Our Sustainability Mandate," Dr. Chang notes that healthcare is estimated to be responsible for about 10% of US carbon emissions, with 71% of those emissions coming from the manufacture, use, and disposal of surgical supplies. Higher-income countries can learn from low- to middle-income countries such as India about how to reduce cataract surgery waste. For example, the Aravind Eye Clinic reuses supplies such as surgical gowns, cannulas, and irrigation bottles, and the postsurgical endophthalmitis rate was found to be just 0.04%, equal to that seen in a study of IRIS Registry data. Survey data from US and European cataract surgeons and nurses indicate an overwhelming preference for reusable and multi-use options.