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The Visual Instrument and Sensory Organ Replacement, or VISOR, is a Federation Medical device that allows Geordi La Forge to see in the extended Electro-Magnetic Spectrum.
The Visual Instrument and Sensory Organ Replacement assists visually impaired individuals by converting Electro-Magnetic Wave data into delta-compressed wavelengths that can be interpreted by the Human brain. Information is ingested by sensors in the golden tines of the VISOR. The sensitive instrument can detect wavelengths from 1 Hertz to 100,000 Terrahertz. This range allows wearers of the VISOR to see past the visible spectrum into Infrared, Ultraviolet, Tachyon Fields, Neutrino Emissions, and other phenomenon outside of the visual acuity of biological eyes. A wearer can even make basic medical diagnoses such as gauging heart rate. This information is converted into interpretable data and sent into through brain implants with connectors exposed on the wearer's temples.
The usage of the device requires a certain degree of training and acclimation. Users may still experience severe headaches or nausea depending on spatial anomalies or infection.
Geordi La Forge
Starfleet Officer Geordi La Forge was born blind. He wore a VISOR package from childhood to the year 2373, including during his service aboard the USS Enterprise-D. His ability to use the VISOR to see beyond the visible spectrum allowed him to analyze information beyond normal Humanoids and aided him in his engineering. La Forge upgraded his VISOR package as better technology became available in 2363. In Between the years 2271 and 2273, Geordi La Forge underwent a series of operations to replace his VISOR with cybernetic optical implants.
Geordi La Forge's VISOR also represents a security threat. On multiple occasions, Geordi La Forge has been turned into an unwitting spy or assassin. In 2367, Romulans kidnap Geordi from his shuttlecraft. The Romulans use the VISOR as well as E-Band transmissions to brainwash and activate La Forge into attempting to kill a visiting diplomat. In 2371, Doctor Tolian Soran modifies the VISOR too transmit data back to the B'Etor Sisters. The B'Etor sisters use visual data sent from the VISOR to uncover the USS Enterprise-D's shield frequency. In the ensuing battle, the B'Etor Sisters damage the Enterprise enough to cause a warp core breach. It is destroyed. Thanks a lot, Geordi.
Behind the Scenes
LeVar Burton Sporting an Early Season VISOR Prop.
The Elastic Band on an Earlier VISOR Prop.
In earlier seasons, the VISOR was constructed by property master Michael Cuda. A hair band inspired the design after Cuda saw one in a drug store. The early season VISOR prop is made of shaped steel and brass bars for the tines. It has a metal inset for the nose and an elastic band to fasten the prop to LeVar Burton's head. There are rubber pads to make it slightly more comfortable. The prop was heavy and cumbersome, and Burton frequently complained about the device blocking his vision. He stated that he frequently walked into tables and doorways. To make matters worse, producers felt that the elastic band on the prop was noticeable. In later seasons, the prop was redesigned to act as a clamp. Property masters would literally screw the prop onto LeVar Burton's temples. Furthermore, the later version VISOR featured more metal tines, adding to the weight of the prop. Burton experienced severe head pain and could only wear the prop for short periods of time.