What does 6 6 mean on an eye test?

Many people refer to ‘perfect’ vision as ‘6/6′ or ’20/20’ (US notation measured in feet), but this is not strictly true – these terms refer to ‘average’ vision. If you achieve a vision measurement of 6/6, this means that you can see at a distance of 6m what an average person also sees at the same distance.

What is a good vision score?

“Normal” vision is 20/20. 20/20 is not the best possible eyesight however, for example, 20/15 vision is better than 20/20. A person with 20/15 vision can see objects at 20 feet that a person with 20/20 vision can only see at 15 feet.

What does 6/6 vision acuity mean?

6/6 is the visual acuity of the eye and – 0.25 and – 0.75 is the refractive error you have. But how were these values arrived at.. When looking for the sake of certificates, all what is checked is whether the person is able to read the required line ie 6/6.

What is the difference between average normal vision 6/6 and 20/20?

6/6 means you see at 6 metres what an average person can see at six metres, and 20/20 is the equivalent in feet, twenty feet versus twenty feet. So the average normal vision in the general population would mean that what someone sees at twenty feet an average person can see.

What is the difference between -3 and 6/9 vision?

-3.0 indicates the spectacle lens power for a particular person to get best (clearest) vision. 6/9 vision denotes being able to read a particular size of letters on a Snellen visual acuity chart. If you had -3.0 of shortsightedness/myopia, you would not see 6/9 on the chart at 6 meters, without glasses.

What is the meaning of 6/6 6/9 6/18?

The fractions 6/6, 6/9 or 6/12, 6/18.. are measurements of Visual Acuity (VA). VA denotes the clarity and accuracy of your vision and is typically checked at a distance of 20 feet (6.1 m).