In Summary:Out of the 50 responses, all of them knew what myopia was.
42 of them had myopia and 8 of them did not have myopia.
Which means that 84% of the people who completed the survey had myopia.
We added up the results and found the mean of the age that they had myopia, which was 9 years old.
The top reason why they think they had myopia was because of computer and gaming over usage.