Three-month-old mice were anesthetized with intraperitoneal ketamine (100 mg/kg; Henry Schein, Melville, NY, USA) and xylazine (10 mg/kg; Henry Schein), and eyes were dilated with 1% tropicamide ophthalmic solution (NDC #17478-102-12; Akorn Inc., Lake Forest, IL, USA). Images were taken using a Micron IV retinal imaging system (Phoenix Research Laboratories, Pleasenton, CA, USA). After in vivo imaging, some animals were allowed to recover on a heating pad, and others were intracardially perfused and eyes enucleated for histological analysis.14 (link),15 After recovery, animals were allowed to rest for at least 1 week before undergoing visual acuity and IOP measurement.