Clinical Study

Prediction of Driving Safety in Individuals with Homonymous Hemianopia and Quadrantanopia from Clinical Neuroimaging

Table 1

Visual field characteristics and etiology of brain injury of the participants.

Participant #Age (years)Visual field lossEtiology1 Verbatim report by neuroradiologist regarding the CT scan/MRI (size and location of the brain injury)Years since injury

11057Left incomplete homonymous hemianopia with no macular sparingCVA2Right PCA fusiform aneurysm abuts right optic tract. Right corona radiata infarct that is probably involving the right optic radiation or the LGN2

11579Right incomplete homonymous hemianopia with macular sparingCVA—left mesial occipital lobeOld left occipital infarct involving the pole and most of the calcarine cortex1

11834Right incomplete homonymous hemianopia with macular sparingArteriovenous malformation—left occipital lobeLeft occipital and medial temporal arteriovenous malformation with oedema surrounding it17

13541Left complete homonymous hemianopia with no macular sparingTrauma—multiple incidents of trauma associated with boxing career and assaultProbable right occipital encephalomalacia>10

13777Left complete homonymous hemianopia with no macular sparingCVARight posterior cerebral artery infarct involving most of the occipital lobe and part of medial temporal lobe6

14283Left incomplete homonymous hemianopia with macular sparingCVAOld right posterior cerebral artery infarct sparing occipital pole; developed huge right posterior cerebral artery infarct4

14625Left incomplete homonymous hemianopia with macular sparingTumor—craniopharyngioma treated by resection and radiationSuprasellar craniopharyngioma compressing optic chiasm; oedema extends into optic tract bilaterally but right more than left involvement1

15031Left complete homonymous hemianopia with no macular sparingRight temporal lobectomy as treatment for epilepsy following traumaRight temporal encephalomalacia due to craniotomy that extends into right optic tract and in optic radiation10

15166Left incomplete homonymous hemianopia with macular sparingCVA associated with cardiac surgeryRight occipital haematoma from AVM; oedema extended into parietal and temporal lobe radiations at the time but later resolved2

15443Right incomplete homonymous hemianopia with no macular sparingTrauma—parietal and occipital fractures; subarachnoid haemorrhage, from motor vehicle collisionLeft posterior-inferior temporal encephalomalacia likely involving the left optic radiation; no occipital cortex involvement7

15855Left complete homonymous hemianopia with no macular sparingCVA associated with cardiac surgeryRight posterior cerebral infarct that involves medial temporal lobe and anterior aspect of the occipital lobe but partially spares the occipital lobe3

15977Right incomplete homonymous hemianopia with no macular sparing
CVA—left occipital lobeLeft occipital infarct sparing much of the calcarine cortex5

10242Right complete superior quadrantanopiaCVA secondary to vasospasmOld left occipital and medial temporal lobe infarct (posterior cerebral artery) occipital lobe spared; right anterior temporal and superior frontal encephalomaacia; right postcentral gyrus old infarct2

10669Left incomplete superior quadrantanopiaCVA—right medial temporal lobe and right external capsuleRight internal capsule posterior limb and uncus acute infarct that probably involves right optic tract2

14928Right incomplete inferior quadrantanopiaLeft parietal lobe brain tumorLeft parietal encephalomalacia due to tumour resection which extends into parietal optic radiation but spares occipital pole; no temporal lobe involvement13

15257Left incomplete inferior quadrantanopiaCongenital brain abnormalitySmall old right occipital infarct spares the occipital poleCongenital

If brain loci information is not listed in Table 1, it was not available in the medical record.
Cerebral vascular accident.