### body part | organ | optic:

Fiber optic
* All fiber optics work on the principal of total internal reflection.
* allows phone calls to be coded into light pulses and sent through glass fibers.
* are a cheaper form of communication than wire cables
  - way of transmitting light through high-quality plastic fibers
* are capable of carrying much greater bandwidth technologies such as full motion video
  - transmitting many interactive video channels simultaneously
  - light waves
  - more compact, can transmit a signal farther and are less subject to interference
  - much cheaper than copper per circuit but somewhat more expensive per unit length
* are thin, flexible glass strands that transmit voice, data and images as light
  - strands of plastic or glass that transmit light
  - transmissions
* can carry far more information than equivalent copper wires
  - much more information than copper wire
* conduct less light when bent.
* deliver total protection of control circuits from devastating lightning strikes.
* depend on glass fiber of special composition and are made using specific processes.
* fast moving technology.
* form the backbone of broadband telecommunication systems.
* have a greater capacity for information which means smaller cables can be used
  - the highest bandwidth
* highly secure medium.
* is about photons, and companies dealing with photonics are going to be big winners
  - also the best technology for teleconferencing
  - an application of such reflection
  - composed of microscopic strands of glass
  - considered the fastest method of transferring information
  - faster and more secure than satellites
  - immune to environmental hazards such as lightning
  - more difficult to terminate than copper
  - of major importance in communications and related fields
  - recognized as the most promising, future-proof technology to replace copper
  - the new medium that is changing the information technology dream into reality
* is the preferred method of carrying Internet, voice, video and data communications
  - voice, video or data communications
  - transmission technology for Internet, video, voice and data traffic
  - state of the art for cabling systems
* particularly popular technology for local-area networks.
* rapidly growing technology with many applications.
* signaling prevents electromagnetic interference, which can occur in hydraulic systems.
* take communications to the next level.
* transmit light rather than electricity.
* uses light instead of electricty so it potentially faster
  - solid state semiconductor type lasers
* view the entire chamber volume to measure the total stimulable light of the population.
* way of transmitting light through high-quality glass or acrylic fibers.
* work very well in enterprise networks as a backbone infrastructure.
* works by carrying light along hair-thin filaments of glass
  - well in hazardous locations

Geometric optic
* define the ideal shape of a mirror surface.
* form the main components of the unit.
* is the short wavelength limit of physical optics.

Geometrical optic
* applies the laws of reflection and refraction of light to the design of lenses.
* ignores diffraction, and treats light as being composed of rays.

Multicoated optic
* have faint magenta or green reflections, as well as white.
* increase light transmission while reducing lens flare and color distortion.

Optic flow
* helps humans learn to navigate through synthetic environments.
* is used to control human walking.

Optic neuritis
* causes pain and a rapid, often extreme, loss of vision.
* common presenting symptom.
* implies a separate site of involvement in the optic nerve.
* is an inflammation of the optic nerve that connects to the back of the eye
  - diseases
  - the medical term used to describe an inflammation of the optic nerve
* is the most common optic nerve disease to affect young people
  - frequent and serious adverse effect of ethambutol
* rare contraindication.