‘Vutest’ tests to a 6/9 (20/30) threshold. Scores below 75% indicate that 3 or more 6/9 letters were incorrectly identified. Right and left eyes are tested separately by manual occlusion of the non-tested eye.
An Amsler grid is presented to each eye separately. Scores below 75% indicate that there was some distortion or break in the Amsler grid.
The two eyes are dissociated horizontally and then vertically, perception of a double after-image indicating retinal slip requiring binocular vision assessment. Phoria scores below 75%, indicate a possibility of dissociation.
Letters are presented to the user in random order around the screen. Failure to recognise the letters indicates a difficulty which may be due to a field defect, binocular vision imbalance, distressed scanning, and accommodational anomalies.
Colour vision scores below 75% indicate a failure of at least one colour confusion plate. The user does not fail ‘Vutest’ if the score is below 75%. Failure of colour vision is not in this case considered a definite reason for referral to an optometrist.
Click on here if you are paying for your own test. When you have completed the test you will have the option to view and download the results for just £3 or you can choose to view example demonstration results instead free of charge.Launch Test