Hemianopia Home A-Z Health Information Health Library A-Z Hemianopia Overview Hemianopia means loss of field of vision on one side (right/ left). The patient cannot see the objects on the affected side. Causes Traumatic brain injuriesEpilepsyBrain tumoursLymphomaAlzheimer’s diseaseDementiaHydrocephalusMultiple sclerosisHigh brain pressureCarotid artery aneurysmsShaken baby syndrome Risk factors Brain inflammation or infection (for e.g., neurosyphilis or encephalitis)Brain tumours/lesionsTraumatic brain injuriesConcussionsSeizures and epilepsyDegenerative brain diseases like Alzheimer’s disease or Creutzfeldt-Jakob diseaseMetabolic conditions or effects, like low blood sugarInflammatory and autoimmune conditions (neuromyelitis optica or multiple sclerosis)Migraines (especially with auras) Symptoms Partial loss of vision Diagnosis Clinical examinationPerimetryMRI brain Types Homonymous hemianopia - Caused by stroke, tumourBitemporal hemianopia- In patients with pituitary adenoma and craniopharyngioma patientsInferior quadrantanopia- In stroke and tumour patientsSuperior quadrantanopia- Caused by stroke, tumourBinasal hemianopia - In patients with bilateral internal carotid artery aneurysmsBilateral scotomas- In patients with head injuryJunctional scotoma- In patients harbouring tumours Specialist to approach Neurologist Treatment Treatment of underlying cause.Repetitive visual stimulation for affected side