Pie In The Floor Field Defect Is Seen In

Visual field defect question 740580.

Pie in the floor field defect is seen in. Which one is correct and can both be correct as temporal lobe is mainly supplied by mca except inferior temporal lobe supplied by pca. D right superior quadrantanopia pie in the sky. Pie in the sky defect is just as it sounds a defect that looks like a slice of pie. Neuroanatomy of the visual pathway and the blood supply.

Humphrey visual field test results. These fiber pass through retrolentiform part of internal capsule. Inferior quadrantic hemianopia pie on floor contralateral to lesion optic radiation pass through internal capsule. Pie in the sky defect is caused by damage to inferior and anterior part of temporal lobe which has affected the optic radiations or fibers in that area.

C left hh with macular sparing. Let s break down the visual field results above. Defects of visual pathway 1. Pie on the floor defect.

Visual field defects seen in each eye s visual field and the image perceived by the patient. Also remember a lesion to the left side of the head is likely to give a right visual field defect and vice versa. Pie in the sky visual field temporal lobe lesion pie on the floor visual field parietal lobe lesion anytime the lesion is in both eyes think post chiasmal. Interpreting and localizing visual field defects.

Defects of visual pathway 2. Loss of 1 2 field of vision. Everyone probably knows this defect. It is the defect seen in optic tract.

E inferior quadrantanopia pie on the floor figure 2. Hemianopia loss of field of vision in both eyes. The entire area that can be seen by the patient without movement of the head and with the eyes fixed on a single spot. While quadrantanopia can be caused by lesions in the temporal and parietal lobes it is most commonly associated with lesions in the occipital lobe.

Visual fields mapping of visual fields. If it is located in the same area of both eyes it is called a homonymous quadranopsia or scotoma. An elderly man presented to his ophthalmologist with complaints of difficulty seeing. Quadrantanopia quadrantanopsia refers to an anopia affecting a quarter of the field of vision.

Fa 2013 says that lower quadrant anopia inferior quadrant anopia is due mca occlusion where as kaplan book says it is because pf pca occlusion. Optic radiation lesions pie in the sky pie on the floor. Confrontational method perimetry manual or automated 3. An inferior homonymous loss of vision in two quarters due to a lesion of the superior fibres of the optic radiations in the parietal lobe on the contralateral side of the visual pathway.