Subjects were parents who had children after becoming blind and who accepted to participate in the study after signing the free and informed consent term. The study was approved by the Research Ethics Committee at the Federal University of Ceará COMEPE, registered as No 345/05.
Los sujetos fueron padres que tuvieron hijos después de quedar ciegos y que aceptaron participar del estudio después de firmar el término de consentimiento libre y esclarecido, aprobado en el Comité de Ética en Investigación de la Universidad Federal de Ceará COMEPE, bajo el nº 345/05.
Os sujeitos foram pais que tiveram filhos após a cegueira e que aceitaram participar do estudo após assinar termo de consentimento livre e esclarecido, aprovado no Comitê de Ética em Pesquisa da Universidade Federal do Ceará COMEPE, sob o nº 345/05.