Lenses are an indispensable part when talking about the structure of glasses. Let’s find out how many types of sunglasses are available today, and which one should be purchased to suit your individual needs! What are...
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In the era of digital technology, school refractive errors are increasing significantly in countries around the world, including Vietnam. According to estimates by the World Health Organization, there are currently about 150 million people with uncorrected...
Myopia refractive error is increasing in the population, especially in children in the digital age. Areas in Asian countries such as Singapore and China are places where the rate of refractive errors is increasing and accounts...
