Balint syndrome

Balint syndrome is a rare neurologic disease characterized by the triad of optic ataxia, ocular apraxia and simultanagnosia due to posterior parietal lobe lesions. Patients report ophthalmologic difficulties in the absence of underlying ophthalomologic anomalies and present severe visual and spatial disabilities in locating and reaching objects, initiating voluntary eye movements and perceiving more than one object at a time.

Blindness

Blindness is the condition of lacking visual perception defined as visual perception below 3/60 and/or a visual field of no greater than 10 degress in radius around central fixation.


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PMID (PMCID)
24753652
(3992743)
 OTHER
Balint syndrome.
Amalnath SD, Kumar S, Deepanjali S, Dutta TK.
Ann Indian Acad Neurol. 2014;17(1):10-1.
We report a patient who presented with complaints of blindness following stroke and was subsequently diagnosed to have Balint syndrome.
21566529
 FEMALE Adult
Posterior reversible encephalopathy syndrome presenting as Balint syndrome.
Kumar S, Abhayambika A, Sundaram AN, Sharpe JA.
J Neuroophthalmol. 2011;31(3):224-7.
Visual perception disturbances in the posterior reversible encephalopathy syndrome (PRES) include hemianopia, visual neglect, and cerebral blindness, but Balint syndrome had not been recognized.
10572801
 FEMALE Middle Aged
[Electrophysiologic diagnosis of 2 psycho-visual syndromes: Balint syndrome and cortical blindness. A propos of a case of Benson progressive posterior atrophy].
Jarry D, Rigolet MH, Rivaud S, Bakchine S.
J Fr Ophtalmol. 1999;22(8):876-80.
[Electrophysiologic diagnosis of 2 psycho-visual syndromes: Balint syndrome and cortical blindness.