====== Junctional scotoma ======

Inferonasal fibres of the [[optic nerve]] which go into the contralateral optic nerve 4 mm before crossing over to the opposite [[optic tract]]. A lesion here produces a [[junctional scotoma]].


Compression of the [[optic nerve]] near the [[chiasm]] may produce a superior temporal quadrant defect in the contralateral [[eye]] ([[junctional scotoma]] "[[pie in the sky]]" defect) from injury to the anterior [[Wilbrand's knee]].