It helps the person get closer and communicate with that person at face value. Working together strengthens the bond.
Long-time activities, such as a long running(or the Pacer Test), swimming, and biking.
Hope this helps! :)
Answer:
I wish you the best of luck on this but you might have to find someone smarter then me to answer this for you.
A printable Snellen Chart, which you can download online.
Something to cover one eye at a time, like an eye patch or a paper cup.
Scissors.
Tape or tack to hang the chart on your wall.
Pencil or pen to record your results.