látóidegek

Látóidegek, also known as optic nerves, are a pair of crucial nerves that transmit visual information from the retina to the brain. Each eye has one optic nerve, which is essentially a bundle of over a million nerve fibers. These fibers carry signals generated by light hitting the photoreceptor cells (rods and cones) in the retina. The optic nerve then relays these signals through the optic chiasm, where fibers from the nasal (inner) half of each retina cross over to the opposite side of the brain. From the chiasm, the visual information travels via the optic tracts to various areas of the brain, primarily the visual cortex in the occipital lobe, where it is processed into coherent images. Damage to the optic nerve can result in significant vision loss, ranging from blurred vision to complete blindness, depending on the extent and location of the injury. Conditions affecting the optic nerve include glaucoma, optic neuritis, and optic nerve atrophy, all of which require prompt medical attention.