Refractive Errors Among Children, Adolescents and Adults Attending Eye Clinics in Mexico
The purpose of this study was to assess the proportion of refractive errors in the Mexican population that visited primary care optometry clinics in fourteen states of Mexico.
METHODS: Refractive data from 676 856 patients aged 6 to 90y were collected from optometry clinics in fourteen states of Mexico between 2014 and 2015. T
RESULTS: The proportion among all of the subjects was hyperopia 21.0%, emmetropia 40.7% , myopia 24.8% and astigmatism alone 13.5% .
Myopia was the most common refractive error and frequency seemed to increase among the young population (10 to 29 years old)
Hyperopia increased among the aging population (40 to 79 years old)
Astigmatism alone showed a decreasing trend with age (6 to 90y; from 19.7% to 10.8%)
There was a relationship between age and all refractive errors (approximately 60%, aged 50 and older).
The proportion of any clinically important refractive error was higher in males (61.2%) than in females (58.3%).