KEY RESOURCES TABLE

REAGENT or RESOURCE	SOURCE	IDENTIFIER
Biological Samples
Human retina, male, 78 yrs.	This paper	Patient ID # 70919
Human retina, female, 79 yrs.	This paper	Patient ID # 72319
Human retina, male, 68 yrs.	This paper	Patient ID # 73019
Human retina, male, 73 yrs.	This paper	Patient ID # 31720
Chemicals, Peptides, and Recombinant Proteins
Ames’ medium	Millipore Sigma	Cat # A1420
Hyaluronidase, type V	Millipore Sigma	Cat # H6254
9-cis retinal	Millipore Sigma	Cat # R5754
Bovine serum albumin	Millipore Sigma	Cat # A7030
Software and Algorithms
MATLAB	Mathworks	RRID:SCR_001622
Cogent Graphics Toolbox	Laboratory of Neurobiology	www.vislab.ucl.ac.uk
MC_Rack	Smart Ephys	RRID:SCR_014955
Offline Sorter	Plexon Inc.	RRID:SCR_000012
Other
Multielectrode array recording system	Smart Ephys	USB-MEA256-System
Multielectrode arrays	Smart Ephys	256MEA100/30iR-ITO