Fig. 3: Attachment process of retinal phantom.

a Production of a transparent layer to prevent Ch1 from bursting. b Create an inlet and outlet holes for fluid flow and attach two multilayers and three channels. c Structure containing two multilayers and three channels is cut to 34 mm after attaching the curved base plate. d Attach a transparent PDMS ring pattern to prevent fluid leakage from Ch1. e Attach the tubes to the inlet and outlet ports.