anatomical narrow angle borderline glaucoma ICD9CM:365.02 DOID:13327 UMLS_CUI:C0154941 A borderline glaucoma characterized by an anatomically narrow anterior chamber angle with or without additional clinical features and risk factors associated with high likelihood of developing glaucomatous optic atrophy in the future. These additional features may include elevated intraocular pressure, retinal nerve fiber layer abnormalities, abnormal anterior chamber angles, and/or a positive family history for glaucoma without any evidence of current optic nerve atrophy. disease_ontology borderline glaucoma