has part has part has_part characteristic of part of has modifier abnormal eye development abnormal optic cup morphology abnormal ophtalmic cup morphology any structural anomaly of double walled structure formed by expansion and invagination of the distal end of the optic vesicle that develops into the pigmented and neuronal layers of the retina, with the mouth of the optic cup developing into the pupil of the eye MPheno.ontology MP:0004269 abnormal eyecup morphology abnormal eye cup morphology abnormal ocular cup morphology morphology abnormal optic cup