Ngwaahịa a na-anabata teknụzụ nlele anya stereo nke mbụ, nke nwere ike ilekwasị anya n'ọhụụ binocular nke onye na-ekiri ihe n'ime oghere dị warara iji mepụta ebe nlele akụkụ atọ na-egbuke egbuke, na-ebuwanye ibu, na-enye ọnọdụ omimi pụrụ iche nke akụkụ atọ maka nyocha na ọgwụgwọ.