Question

3 fill in the blank 1 point 20/30 vision is choose your answer... than 20/20 vision previous

Explanation:

In vision testing, 20/20 is normal (can see at 20ft what others see at 20ft). 20/30 means one sees at 20ft what others see at 30ft, so it's worse (poorer) than 20/20.

Answer:

worse (or "poorer" can also be correct, but "worse" is more common here)