M.A.S.H.

To measure the field of view we need to make our own visual field test equipment - in particular, we need to make one to test peripheral vision that we can also use to investigate rod and cone cell sensitivity in our peripheral vision...

I call it M.A.S.H. - "Multi-light Automated System to measure Human field of view"

I think we can adapt a system from card, sticky-back plastic and an electronic dice project...
Here is a electronic dice design we could use to control LEDs

...and here is a simplified version we can make on our proto-board kit using the 555 Timer in astable mode to send a stream of counts to a 4017 Counter chip with a reset after 6 counts. If the counts from the 555 Timer are fast, it will be random and allow us to light a random LED whilst our subject looks at a central point.

(or you could just play MASH?)