Cortical blindness (CB) is described as a loss of vision ability caused by bilateral damage to the tissue of the striate cortex in the occipital lobes with perfectly natural pupillary light reflexesĬerebellum, cerebrum, and brain stem are the three major divisions of the brain.This information is then passed from the lateral geniculate to V1, the very first region of the visual cortex.Visual data from the retinas of the eyes travel to the visual cortex via the thalamus, where it synapses in a nucleus known as the lateral geniculate.When visual data is sent forward from the retina, it travels through the use of the optic nerve (that shortly becomes the optic tract) to the lateral geniculate nucleus of the thalamus.The right cortical areas interpret messages received from the left eye, whereas the left cortical areas interpret data from the right eye. Both hemispheres have their visual cortex that gets data from the opposing eye.Every module includes a variety of neuronal columns required to analyse a particular region of the visual field. These nerve cell columns are grouped to form assemblies known as modules.The nerve cells in the primary visual cortex are organized into sections with fairly similar characteristics.The visual cortex is present in the posterior region of the brain, in the occipital lobe, which is one of the four lobes of brain.In this article, the location, structural components, function, and clinical complications involving the visual cortex are discussed. The visual pathway starts at the retinas of the eyes and ends up in the visual cortex of the brain for image processing and interpretation. The visual cortex is present in the occipital lobe of the primary cerebral cortex that is located in the brain’s most posterior area. As it is obvious from the name, the occipital lobe is responsible for visual data processing. The brain has four lobes: the frontal lobe, the parietal lobe, the temporal lobe, and the occipital lobe. Each part of the brain is specialized to perform a particular task and to understand this complex working of the brain, it has been divided into many different chambers so that its numerous complicated processes can be better interpreted. The brain is an essential component of the human body because it conducts vital functions and controls nearly all bodily functions. Complications involving the visual cortex:.
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