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| rdfs:comment | - Superman was explaining this process to Marvin White and Wendy Harris in the Hall of Justice, by using a diagram on their video bank.
- A member of the Suliban Cabal examined by Phlox in 2151 had compound retinas, allowing him to see better than many sensors. (ENT: "Broken Bow") In 2153, Malcolm Reed was left with a detached retina following a fight with Major Hayes. (ENT: "Harbinger") After Geordi La Forge's VISOR had filtered out an intense flash of light from the Cytherian probe in 2367, Doctor Beverly Crusher determined that his retina was undamaged. (TNG: "The Nth Degree" )
- The retina is the light sensitive area at the back of the eye socket. It contains cells that react to light and pass those signals on as nerve impulses to the brain. In humans, there are two types of light sensitive cells in the retina; rods, that detect low levels of light, and cones, that can detect the color of light. Rods are so sensitive to light that they can detect a single photon. The blood vessels and nerves that lead into the retina actually pass through it. There are no rods or cones in the area where the blood vessels and nerve pass through, which is referred to as the blind spot.
- The retina is a thin layer of cells at the back of the eyeball of vertebrates and some cephalopods; it is the part of the eye which transduces light into neural signals. The retina contains photoreceptor cells (mainly rods and cones, but also some retinal ganglion cells) which receive the light; the resulting neural signals then undergo complex processing by other neurons of the retina, and are transformed into action potentials in retinal ganglion cells whose axons form the optic nerve. The retina not only detects light, it also plays a significant part in visual perception. In embryonal development, the retina and the optic nerve originate as outgrowths of the brain.
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| abstract | - Superman was explaining this process to Marvin White and Wendy Harris in the Hall of Justice, by using a diagram on their video bank.
- The retina is a thin layer of cells at the back of the eyeball of vertebrates and some cephalopods; it is the part of the eye which transduces light into neural signals. The retina contains photoreceptor cells (mainly rods and cones, but also some retinal ganglion cells) which receive the light; the resulting neural signals then undergo complex processing by other neurons of the retina, and are transformed into action potentials in retinal ganglion cells whose axons form the optic nerve. The retina not only detects light, it also plays a significant part in visual perception. In embryonal development, the retina and the optic nerve originate as outgrowths of the brain. George Wald, Haldan Keffer Hartline and Ragnar Granit won the 1967 Nobel Prize in Physiology or Medicine for their scientific research on the retina. The unique structure of the blood vessels in the retina have been used for biometric identification.
- The retina is the light sensitive area at the back of the eye socket. It contains cells that react to light and pass those signals on as nerve impulses to the brain. In humans, there are two types of light sensitive cells in the retina; rods, that detect low levels of light, and cones, that can detect the color of light. Rods are so sensitive to light that they can detect a single photon. The blood vessels and nerves that lead into the retina actually pass through it. There are no rods or cones in the area where the blood vessels and nerve pass through, which is referred to as the blind spot. The retina's shape is curved only by the outward pressure of the fluid in the eyeball - it is not attached to the skull. As such, a "detached retina", where the retina comes away from the eye socket, is somewhat of a misnomer as what happens is that the eyeball leaks fluid which deforms the retina's shape. The retina can be viewed by a physician through the iris by using a bright light and a scope. In this way, the physician can determine if there are any clots or other malformities of the retina if the patient complaints of poor vision.
- A member of the Suliban Cabal examined by Phlox in 2151 had compound retinas, allowing him to see better than many sensors. (ENT: "Broken Bow") In 2153, Malcolm Reed was left with a detached retina following a fight with Major Hayes. (ENT: "Harbinger") After Geordi La Forge's VISOR had filtered out an intense flash of light from the Cytherian probe in 2367, Doctor Beverly Crusher determined that his retina was undamaged. (TNG: "The Nth Degree" )
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