A visual acuity assessment system is disclosed. The visual acuity assessment system includes a display device, a remote control and a control module. The display device displays optotypes, the optotypes are calibrated to indicate assessment of visual acuity. The display device is positioned at a predetermined distance from a patient the display device includes a receiver. The remote control has a plurality of functional keys including at least one selection key and at least one distance key. The at least one selection key is for activating displaying of a pre-determined letter/s for amblyopia, wherein edge- to- edge distance of the pre-determined letters does not vary substantially. The at least one distance key sequentially varies distance between the letters for determining the degree of laziness of an eye(s) of a patient. The at least one indication for facilitating in determining the degree of laziness is displayed on the display device.