VisionC (ETDRS Visual Acuity)

By Qvision, Departamento de Oftalmología on AppTrack Ninja.

High and Low Contrast Chart

VisionC is the first ETDRS chart completely configurable to be presented at any distance from 20 cm to 400 cm (1 cm step) and for any Contrast from 0 to 100% (1% step). It is the only one that allows you to control de luminance of the background and the optotype with a low-cost external luminance meter. You can use PicoDisplay App and Pico (Palette) device for this purpose. The visual acuity with the ETDRS is usually measured at three distances (far, intermediate and near) but research studies sometimes differ in the specific distance for each one of the categories. With VisionC you can selec…

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