A new paper compiled by LG and Google researchers stipulates that the human eye has a resolution of about 9600 x 9000 pixels with a FOV of 160 x 150 degrees. The new LG OLED VR screen is not there yet, but i certainly seems to be the best on the market right now, with its 4800 x 3840 resolution, 120 Hz refresh rate, and a 120 x 96 degrees FOV.
https://www.notebookcheck.net/Google-and-LG-working-on-5K-virtual-reality-displays.305128.0.html