VisionC (ETDRS Visual Acuity) vs Control LITE

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 select the specific distance for each one of these three configurations in such a way you can rapidly access to the specific distance you desire. The App comes with a different set of letters in order to avoid memorization. Therefore either letters for distance, intermediate and near or right, left and both eyes differ to prevent memorization. You can join our community in order to ask any question or to receive support: www.facebook.com/groups/qvisionacademy/

Control all the features of the Chart2020 LITE app from your iPhone You can mask, randomize, increase decrease VA sizes from your iPhone, set testing distance, display notations (feet, meters, logMAR and decimal) Control the size of the astigmatism target and the duochrome target for balancing Any function you can control on the iPad app you can control from this app You can use this app on another iPad, iPad mini or even iPad Pro.