ocular fundus morphology trait posterior uvea morphology trait tunica vasculosa oculi morphology trait morphology trait of the vascular layer of the eyeball tunica vasculosa bulbi morphology trait Trait.ontology VT:0005196 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. uveal tract morphology trait vascular tunic of the eye morphology trait uvea morphology trait