For example, the olfactory nerve is essential for detecting smells. The functions of the cranial nerves are sensory, motor, or both. Sensory cranial nerves help a person see, smell, and hear.

Apart from headaches, which become more persistent with time, there are a few other noticeable symptoms of a brain tumour that you should not ignore. From vision issues to nausea and feelings of ...

Papilledema: This is a condition where pressure in the brain causes your optic nerve to swell. This can lead to vision changes, such as double vision, blurriness, and short-term blindness.

Up to 78% of individuals with chronic mild traumatic brain injury (mTBI) can show continuing oculomotor functional losses, or changes in the optic pathway even when patients do not describe any vision ...

Even if the occipital lobe is damaged, other regions of the brain may be able to compensate and take over some of its functions. Complete damage to the primary visual cortex can cause cortical ...

A brain tumor can cause partial or complete loss of vision, depending on its location. Tumors near the optic nerve (optic glioma) can directly damage the nerve, leading to vision loss in one or ...

Optic neuritis refers to an inflammation of the optic nerve, which can occur due to damage or loss of the protective layer that coats the nerve. As a result, the patient's vision becomes compromised, ...

When there is an irritant in the nose, a person’s trigeminal nerve senses the irritation and sends signals to his brain to trigger a sneeze. This pathway is known as the sneeze reflex arc.

Damage to the optic nerve can lead to irreversible blindness. A newly investigated regeneration factor could change that, UConn researchers report in the May 2024 issue of Experimental Neurology.

Figure 1. Initial electroencephalogram (EEG) shows mild encephalopathy. An urgent brain CT revealed a new hypodensity at the left occipital region. T2-weighted FLAIR MRI image showed abnormal ...

Optic nerves (cranial nerve II): carry visual information from the retina to the primary visual nuclei of the brain. Each optic nerve consists of around 1.7 million nerve fibers.