RESUMO
Métodos: estudio prospectivo, comparativo y aleatorio. El universo estuvo constituido por 80 pacientes (80 ojos) con diagnóstico de pterigión primario que se les realizó escisión quirúrgica de la hiperplasia fibrovascular nasal primaria. Se dividieron en 2 grupos al azar simple. Al grupo A (40 ojos) se le implantó injerto de membrana amniótica y al grupo B (40 ojos) autoinjerto de conjuntiva. ..
Methods: a prospective, random and comparative study. The universe was composed by 80 eyes from 80 patients diagnosed with primary pterygium. They had undergone the surgical excision of a primary nasal fibrovascular hyperplasia. They were divided in two single-randomized groups (A and B); the group A patients (40 eyes) were implanted with amniotic membrane graft whereas those of group B (40 eyes)...