Eyedrop helper

My father needed assistance for using eyedrops, because it was difficult to center the dropper with the eye. So i designed a device that, once put over the eye, allow the dropper to be right over the center. The device can be easily cleaned with alcohol or any disinfectant. I printed this in PLA and ABS, at 0.2 layer height, 15% infill, no support/brim/raft. It took about 39 min to print and used only 1.28 meters of filament. I made another for one neighbor, with the same problem, and he was very happy using it. The one in the picture is printed in PLA, at 0.2mm layer height.