6/9 vision for 4 years boy means

2017-10-17 12:16:07
When doctor says 4 years old kid has 6/9 vision, how many lines did he not read from the chart. Please help
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6/9 means 6 lines from top in Snellen chart at the distance of 6 meters.

Answered2017-10-17 13:43:15

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only one line.

Answered2017-10-17 13:39:22

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