Homozygous clones in the eye lack pigmentation. Only minor defects are seen in the composition of the ommatidia. The majority of rhabdomeres are normal. Giant multivesicular bodies (MVBs) with diameters up to 3μm are seen in mutant pigment cells. Many of the internal vesicles in these structures appear coated (this is not seen in wild-type rhabdomeres). Smaller MVBs are seen in mutant photoreceptor cells (these are not seen in wild-type cells).