Question

What should be the position of eye will measuring while scale?

Answer 1

The upper number refers to the distance the chart is from the patient (6 metres) and the lower number (usually written next to the line on the chart) is the distance in metres at which a 'normal' eye is able to read that line of the chart.

Hope it is helpful.

Answer 2

While measuring length using a ruler,

the position of your eye should be

a) Left side of the point.

b) Vertically above the point wherethe measurement is to be taken.

c) Right side of the point

d) Any where according to one’s convenience.