WebLast review/revision Oct 2024. View Patient Education. The optic pathway includes the retina, optic nerve, optic chiasm, optic radiations, and occipital cortex (see figure Higher visual pathways ). Damage along the optic pathway causes a variety of visual field defects. The type of field defect can help localize the lesion (see table ). WebThe optic disk, the first part of the optic nerve, is at the back of the eye. The photoreceptors in the retina convert the image into electrical signals, which are carried to the brain by the optic nerve. There are two main types of photoreceptors: cones and rods.

The Optic Pathway - Merck Manuals Professional Edition

WebThe retrochiasmal afferent pathway extends posteriorly past the chiasm and includes the optic tract, lateral geniculate body, optic radiations, and the striate cortex [8]. The etiologies of retrochiasmal lesions are different between adults and children. WebThe optic pathway includes the retina, optic nerve, optic chiasm, optic radiations, and occipital cortex (see figure Higher visual pathways ). Damage along the optic pathway … nova scotia online learning

Visual Pathway : Anatomy : The Eyes Have It

WebThe optic chiasm is where some of the fibers cross. The optic tract proceeds from the optic chiasm to the lateral geniculate nucleus (LGN). The optic radiation leads from the LGN to primary visual cortex (V1). Visual Fields There are … WebThe figure shows the pathway connecting the eyes to the brain, fibers form the temporal halves of each eye pass to the brain on the same side while those from the nasal halves … WebParts of the Visual Pathway The optic nerve: There are four parts of the optic nerves namely intraocular, intraorbital, intracellular, and intracranial. The intraocular part passes through … how to sketchup 2022 for beginner