ocular fundus morphology trait posterior uvea morphology trait Any measurable or observable characteristic related to the shape, structure, color or pattern of the rear, or dorsal, portion of the vascular, pigmentary, or middle coat of the eye, includes the choroid. Trait.ontology VT:0005196 morphology trait of the vascular layer of the eyeball tunica vasculosa bulbi morphology trait tunica vasculosa oculi morphology trait uveal tract morphology trait vascular tunic of the eye morphology trait uvea morphology trait