Wang et al1 examined the prevalence of visual impairment and spectacle ownership among urban-dwelling migrant children in eastern China. They found a high rate of visual impairment from refractive error and a low rate of spectacle use. They noted that migrant children were significantly less likely to own glasses than local children. Of concern, only 40.3% of migrant children with uncorrected visual acuity less than 6/18 owned glasses, compared with 71.4% of local children. Having uncorrected visual acuity less than 6/18 in both eyes was predictive of higher baseline spectacle ownership; however, parental education and family wealth were not significant predictors.
Ehrlich JR, Kourgialis N, Friedman DS. Impaired Visual Acuity and Spectacle Ownership of Urban Migrant Children in Eastern China. JAMA Ophthalmol. 2015;133(12):1406-1407. doi:10.1001/jamaophthalmol.2015.3664