Thirteen healthcare providers (HCP; seven retina specialists and six assistants) across three sites participated in the study, and they worked mostly in pairs to administer a single intravitreal (IVT) injection of 6-mg faricimab to each of the 35 patients using the prefilled syringe (PFS). For each IVT injection, two Human Factors (HF) observers were positioned such that they could clearly observe the entire preparation and administration process. Each HCP team (i.e., retina specialist alone or retina specialist with assistant, as per local procedure) were asked to perform all preparation and administration steps in view of the HF observers. Critical tasks were observed by the HF observers who documented HCP performance using an assessment checklist. A successful task completion for each critical task was defined as normal use without use error, and the percentages of successful completions are calculated out of the total 35 PFS IVT injections administered.