A visual acuity test for children
from 2½ years and adults
Easy to use with very young children, disabled children and adults
Takes into account the rapid changes in acuity in under five year old children
Adheres closely to the adult standard, facilitating follow-up into adulthood Centile charts of age norms allow detection of the 5% or 10% with the worst acuity for age
Centile charts allow accurate monitoring of clinical change and response to treatment
What is the Sonksen logMAR Test (SLT)?
logMAR The SLT is a new visual acuity test which has been carefully researched with 3000 two to nine year olds. It was developed by a team of experts from the Institute of Child Health, University College London.
A unique feature of the test is that it is published with centile charts of acuity (similar to those used for growth) from 2 years 9 months to 7 years 9 months – a period of very rapid changes in acuity
