has part has part has_part characteristic of has modifier retinal cone cell abnormal retina photoreceptor morphology abnormal retina cone cell morphology CL:0000573 MP:0001006 abnormal cones abnormal retinal cone cell morphology MPheno.ontology abnormal cone photoreceptor morphology abnormal cone morphology any structural anomaly of one of the photoreceptor cell types in the retina, in which the photopigment is in invaginations of the cell membrane of the outer segment; cones are less sensitive to light than rods, but they provide vision with higher spatial and temporal acuity, and the combination of signals from cones with different pigments allows color vision morphology abnormal