| Full text | |
| Author(s): |
Costa, Marcelo Fernandes
[1, 2]
;
Rodrigues Matos Franca, Valtenice de Cassia
[1]
;
Salgueiro Barboni, Mirella Teles
[1, 2]
;
Ventura, Dora Fix
[1, 2]
Total Authors: 4
|
| Affiliation: | [1] Univ Sao Paulo, Inst Psicol, Dept Psicol Expt, Lab Psicofisiol Sensorial, Sao Paulo - Brazil
[2] Univ Sao Paulo, Nucleo Neurociencias & Comportamento & Neurocienc, Sao Paulo - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | CLINICAL EEG AND NEUROSCIENCE; v. 49, n. 3, p. 159-170, MAY 2018. |
| Web of Science Citations: | 0 |
| Abstract | |
The sweep visual evoked potential method (sVEP) is a powerful tool for measurement of visual acuity in infants. Despite the applicability and reliability of the technique in measuring visual functions the understanding of sVEP acuity maturation and how interocular difference of acuity develops in early infancy, as well as the availability of normality ranges, are rare in the literature. We measured binocular and monocular sVEPS acuities in 481 healthy infants aged from birth to 24 months without ophthalmological diseases. Binocular sVEP acuity was significantly higher than monocular visual acuities for almost all ages. Maturation of monocular sVEP acuity showed 2 longer critical periods while binocular acuity showed three maturation periods in the same age range. We found a systematic variation of the mean interocular acuity difference (IAD) range according to age from 1.45 cpd at birth to 0.31 cpd at 24 months. An additional contribution was the determination of sVEP acuity norms for the entire age range. We conclude that binocular and monocular sVEP acuities have distinct growth curves reflecting different maturation profiles for each function. Differences in IAD range shorten according to age and they should be considered in using the sVEP acuity measurements for clinical diagnosis as amblyopia. (AU) | |
| FAPESP's process: | 14/26818-2 - Development and implementation of visual evaluation methods: clinical applications and animal models |
| Grantee: | Dora Selma Fix Ventura |
| Support Opportunities: | Research Projects - Thematic Grants |