Visual Pathway Meyers Loop, Science Medicine Meyer S Loop

Lower optic radiation carries fibres from the inferior retinal quadrants corresponding to the superior visual field quadrants.

Easy cat coloring pages. This temporal deviation of the optic radiations is referred to as meyers loop see fig. The visual fields of both. They are referred to as meyers loop and take an indirect course through the white matter of the temporal lobe to access the inferior bank of the calcarine sulcus of the.

Must pass through the temporal lobe by looping around the inferior horn of the lateral ventricle. Fibers from the inferior retina also called meyers loop or archambaults loop. Recent reports have estimated a temporal pole to meyers loop distance variation of 2244 mm barton et al 2005.

Recall that since the lens inverts all images the lower half of the retina sees the upper half of the world. It travels through the temporal lobe via a pathway known as meyers loop to reach the visual cortex. Carry information from the superior part of the visual field.

A lesion of the right optic radiation specific to meyers loop causes a loss of vision in the upper quadrant of the left h emifield. As temporal lobe resections for. Once at the visual cortex the brain processes the sensory data and responds appropriately.

The ventral most of this band of fibers loops slightly forward deep in the temporal lobe before continuing back to the lingual gyrus of the occipital cortex. The tracts emanate from the lateral geniculate body lgn run around the roof of the occipital horn of the lateral ventricle and terminate in the primary visual cortex in the calcarine sulcus. The visual pathway refers to the anatomical structures responsible for the conversion of light energy into electrical action potentials that can be interpreted by the.

The meyers loop transmits visual information from the. The anterior extension of these fibers in relation to the temporal horn is known as meyers loop. Striate cortex v1 21.

A lesion in the temporal lobe that results in damage to meyers loop causes a characteristic loss of vision in a. Yogarajah et al 2009. These fibers form a relatively broad band of white matter pathways known as the optic radiations.

The same is true for lesions to the. Based on anatomic and pathological studies from human brain specimens after stroke meyer5 found bundles of fibers from the visual pathway surrounding the anterior aspect of the temporal horn. This orientation is preserved through the pathway so that the lower optic radiations or meyers loop are carrying information from the upper visual world.

The optic radiations ors carry visual information to the visual cortex.