In a method for assisting usage of an eyedropper using auxiliary equipment, a current image is captured by an image capturing unit of the auxiliary equipment, one or more eyes are detected in the current image, and one or more rectangular areas enclosing the eyes are determined. One or more first specified ranges are determined according to positions of the rectangular areas, the first specified ranges are determined to be proper areas of the eyes for dropping eye drops from the eyedropper. A position of each of the first specified ranges is compared with a position of a second specified range of a tip of the eyedropper, to determine whether the second specified range is overlapping with one of the first specified ranges. An indicator lamp of the auxiliary equipment is activated according to a determination result.
