Carefully following the instructions, you can measure in tenths your visual acuity. To access the online Test CLICK HERE.
Try to look at this "star" with one eye at a time and evaluate if the "rays" all appear equally crisp and sharp. If there are differences in one or more directions it is present an astigmatism! To access the online Test CLICK HERE.
At 3 meters away better see a letter on the red or the green one? The myopic best seen letters on RED. The hyperopic best seen letters on the GREEN. To access the online Test CLICK HERE.
This test is used to perform a self control of the macular function. It is based on research for any deformation or faults described in the grid above. To make the test online click HERE.