Myopia Clinical Trial
Official title:
A Prospective Clinical Study to Evaluate the Effectiveness of Digital Refraction
Prospective, comparative, randomized, non-masked clinical study to compare the a digital refraction with LogMAR VA testing utilizing trial lenses, to standard manual refraction using a Phoropter, and LogMAR VA testing, in accuracy of visual acuity measurement.
A digital refraction tool is a device meant to measure visual acuity and to subjectively
measure refractive value for a patient's eye for the conditions of myopia and astigmatism. It
is intended for adults aged 22 to 55 years that have no prior correction with up to 3.00
diopters (D) of myopia and up to 2.00 D of astigmatism, or those with prior correction up to
10.00 D of myopia and require an over-refraction of no more than 2.75 D.
LogMAR (ETDRS) chart to measure visual acuity.
The manual manifest refraction is performed by an eyecare specialist using a phoropter.
The LogMAR Visual Acuity chart is used to measure visual acuity. The manual refraction will
be used in this study for obtaining the refractive error of each eye.
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