Refractive Error Changes Due to COVID-19 Pandemic Confinement in Children from Puerto Rico: A Retrospective Study.

Significance: The progression of myopia increased in children after the pandemic confinement. A myopic shift in the refractive error of the Hispanic population was found regardless of the refractive status of the school-aged children studied.

Purpose: This study aimed to evaluate the refractive error in Puerto Rican children before and after the COVID-19 pandemic.