What is the difference between someone who has a visual acuity of 20/10 and some!
Question: What is the difference between someone who has a visual acuity of 20/10 and someone who has 20/50 vision?
Answers:
the person with 20/10 has 5 times better vision than the person with 20/50
Another way of looking at it...
the 'smallest thing' that the 20/10 person can see clearly at 20ft, the 20/50 person can only see an object 5 times bigger than that... or the 20/50 person must walk closer... to 4ft before they can see that 'smallest thing' that the 20/10 saw.