What is an ophthalmic nerve?

Offtalmic nerve is one of the three branches of the fifth skull nerve, also known as a trigeminal nerve. It works on the passing of images and impulses to the brain from the retina, resulting in supervision. In the brain there is a structure called optical chiasm, where the nerve division and nerve fibers cross each side of the brain to the other. Any damage to the ophthalmic nerve will almost always lead to impairment of vision, with serious damage caused by permanent blindness. Several health conditions such as diabetes, multiple sclerosis (MS) and glaucoma may cause nerve damage and cause serious vision damage. The nerves associated with photoreceptors group together to create this nerve, the beginning of which is an optical disk on the back of each eye. Approximately 1.2 million nerve fibers can be found. The nerve leaves the back of each eye through the optical channel and then passes to optical chiasm, where half of each bundle passes to the other side of the brain. Both halves meet and combine again in the rear partThose brain where the pulses are translated in sight.

The

offtalmic nerve is closed in myelin case and then plunges into three layers of mening, membranes that surround and protect the central nervous system. Its unusual path from eye to brain means that damage in specific places will result in a special visual impairment. For example, if the nerve is damaged before optical chiasm, only one eye will be affected. If the optical chiasm itself is damaged, peripheral vision in both eyes is likely to be lost. Problems along one side of the nerve, closer to the brain, will result in the opposite side field in each eye lost.

Damage to the ophthalmic nerve may occur due to a blocked blood supply caused by high blood pressure or diabetes or arteries. Inflammation of the ophthalmic nerve, called optical neuritis, if often caused by RS; and papillEma or swelling of the nerve is often caused by a trauma of the head, meningitis or cerebral abscess or tumor. Toxic or nutritional amblyopia occurs when nutritional deficiency or poison, such as lead damages the optalmic nerve, causing a slow loss of vision over weeks or months. In some cases, the ophthalmic nerve damage may be partially or completely renewed as soon as the basic problem is treated.