eygXE119 mutant flies show a reduction in the size of the eye. eygXE119/eygM3-12 transheterozygotes show a more severe phenotype in which flies have tiny eyes or completely lack eyes altogether. These mutants also have a severe groove on the thorax.
Flies overexpressing DlScer\UAS.cDa under the control of Scer\GAL4ey.PH that are also eygPxA1/eygXE119 mutants have eyes that are reduced in size or completely lack eyes altogether.