According to Healthline, the retina's function is to receive and convert light from the lens into neural signals that are interpreted by the brain. A thin layer of photoreceptor cells in the retina determines color and light intensity. The optic nerve serves as the conduit between the retina and brain.Know More
Although the retina processes visual information, the brain is ultimately responsible for deciphering and determining what the image is, according to Healthline. Damage to the retina can cause permanent blindness. Additionally, conditions where the retina is displaced, such as in retinal detachment, can also cause blindness.
WebMD warns that those who are extremely near sighted, previously have had an eye injury or who have a family history of retinal detachment are at most risk. Symptoms of a detached retina include flashes of light, floaters or darkening of peripheral vision. Yearly eye exams are recommended in order to detect early signs of this disorder.Learn more about Vision
The two main functions of the lens of the eye are to focus light onto the retina and to help the eye focus on objects at various distances. The lens of the eye is a rubbery, jellylike structure. It is located behind the cornea and is held in place by tendons that are attached to a set of muscles called ciliary muscles.Full Answer >
Rods and cones function as photoreceptors in the retina of the eye, turning visible light into neuronal signals, which are sent to the brain. This process is called transduction. Rods and cones perform at different wavelengths and sensitivities allowing detailed perception of light and color.Full Answer >
The appearance of black floating objects in the eye are usually shadows cast on the retina, caused by clumping in the liquid within the eye, known as the vitreous humor. However, eye floaters could signify serious conditions.Full Answer >
A macular hole is a small break that occurs in the center of the eye's retina. The macula is a light-sensitive part of the retina that provides the sharp central vision that aids in seeing fine detail, reading and driving.Full Answer >