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FIG 1. Schematic drawing of the classification by visual field defect. Anterior fibers of Meyer’s loop correspond to the medial sector and posterior fibers correspond to lateral sectors of the upper quadrant visual field of the contralateral side.
Group A, incomplete defect in the medial sector of the upper quadrant visual field.
Group B, complete defect in the medial sector and incomplete defect within the lateral sector.
Group C, complete defect in both the medial and lateral sectors.
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