The fly eye size analysis showed that the eye length and width of AD model flies (GMR-GAL4-UAS-TauWT/+) was significantly decreased to 426.98 μm and 269.59 μm, respectively, as compared to GMR-GAL4/+ flies, which had an eye length of 496.35 μm and eye width of 338.54 μm (Fig. 2I). Here, LGALS4 is linked to Alzheimer disease.