Human Phenotype Ontology 
Grandparent Node:
Abnormal eye physiology (HP:0012373)help
Parent Node:
Abnormal pupillary function (HP:0007686)help
..Starting node
Tonic pupil (HP:0012074)help
Term ID: 12074
Name: Tonic pupil
Synonym: Adie pupil; Adie's tonic pupil
Definition: An abnormality of the pupillary light reaction characterized by a marked slowing of the light reaction of usually just one pupil. The pupil tends to be relatively dilated, and there is reduced accommodation.
Reference: HP:0012074
Genes and Diseases:
       Child Nodes:

 Sister Nodes: 
..expandAbnormal pupillary light reflex (HP:0007695) help
..expandMiosis (HP:0000616) help
..expandMydriasis (HP:0011499) help
InputHPO IDHPO termDistanceGeneGene id entrezDiseaseIdDiseaseNameDiseaseMIMConceptIDSourceTypical associationHGMD variantsClinVar variantsHGNC IDGeneMIM
HPO disease - gene - phenotype typical associations:
HP:0012074HP:0012074Tonic pupil0MPZ CL E G H4359118200Charcot-Marie-Tooth disease, demyelinating, type 1b118200C0270912OMIM12467225159440
HPO disease - gene - phenotype less frequent non-typical associations:

Genes (1) :MPZ

Diseases (1) :118200

Human Phenotype Ontology(HPO) is developed by the Human Phenotype Ontology Consortium. The version used here is June 2019 release.