SUMMARY
The diagnosis and patching therapy monitoring in non-verbal and preverbal strabismic patients by the acuity card procedure are object of discussion in the last few years. The authors measured resolution and recognition visual acuities in 15 patients from 29 to 62 month-olds. These children were assessed first by acuity card procedure, because they did not cooperate to any recognition method due to age. After an interval of at most 6 months, they cooperated to recognition acuity measurement. The results showed a positive correlation, but non-significant, with the 2 methods. There is a reasonable concordance between them. The predictive value of resolution acuity to recognition acuity was not possible to measure due to the sample size. However, there was a concordance of 33% in the studied patients. The results suggest that the discrepancy in the resolution and recognition scores could be due to methodological failures and to bigger perceptual and discrimination deficits that strabismic patients showed in recognition acuity than resolution acuity.