To compare focometer and autorefractor in the measurement of refractive errors among students in an underserved community of sub-Saharan Africa. A total of 230 ...

Please provide your email address to receive an email when new articles are posted on . Described as “a stenopaeic slit refraction system in a binocular telescopic ...

Please provide your email address to receive an email when new articles are posted on . If accurate refractive measurements are needed, cycloplegic eye drops are necessary to reduce the accommodative ...

Chicago-based Opternative has launched an online refractive eye exam service that helps consumers get prescriptions for glasses or contacts. According to the company, the offering is registered with ...

The refractive error, or eyeglasses prescription, results from mismatches in the size and optical power of the eye that lead to blurry vision. The study also counters the notion that near work such as ...

Based on highly accurate optical interferometry and fundamental quantum calculations, researchers in the US are developing an improved definition of the SI unit for pressure that will consign the ...