Fig. 3

Visual acuity on admission and visual outcome. Visual acuity (VA) after stabilization of the ocular condition (visual outcome) was compared to VA at the time of admission to the hospital. For better graphical illustration, counting fingers (CF) and hand movements vision (HM) were converted into a decimal VA of 0.010 for CF and 0.0052 for HM according to the FrACT measures [42]. Since light perception could not be assigned to a specific decimal number, it was defined as 0 as well as no light perception. Case reports without description of either VA on admission or visual outcome were not considered [25, 34]