This may manifest as an increase in myopia in a previously myopic subject— adult myopia progression—or the onset of myopia in a previously emmetropic or .
purpose. To report the frequency of adult-onset myopia in a large cohort of Caucasian twins that were assessed as part of the Genes in Myopia (GEM) twin study.
A myopia pandemic is unfolding before our eyes. Indeed, recent studies (3) indicate that over 32 percent of adult Chinese-American myopes.