We congratulate Ong et al. on their interesting article addressing greener intravitreal injection (IVI) services. The article explores strategies to reduce the environmental impact of building energy and water usage, personal travel, manufacturing, procurement and waste management. We would like to highlight the role of the Delphi process for reducing carbon footprints of IVI services based on our experiences at an NHS teaching hospital.
Description: This is an author accepted manuscript version of an article accepted for publication, and following peer review. Please be aware that minor differences may exist between this version and the final version if you wish to cite from it.