Purpose: To present a checklist for the evaluation of low vision in uncoope
rative patients; in this specific case, children with neurological deficits
.
Method: The checklist includes several behavioral indicators obtainable wit
h a standard clinical examination. Each test is assigned a score (0 = failu
re, 1 = success). The final visual quotient score is obtained by dividing t
he partial score by the total number of tests performed. Eleven children wi
th cerebral visual impairment were studied using behavioral and preferentia
l looking techniques.
Results: Visual quotient was >0 in all patients, indicating that residual v
isual function was always detectable. Average visual quotient was 0:74.
Conclusion:Visual quotient can be useful both for follow-up examinations an
d comparison and integration with other evaluation methods (behavioral and
instrumental) of residual visual capacity. In particular, if combined with
preferential looking techniques, visual quotient testing permits characteri
zation of the entire spectrum of low vision.