STRABOSCOPIC DISC Meaning and
Definition
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A straboscopic disc is a device used in vision testing and research to evaluate ocular motor function. It consists of a circular disk with alternating black and white sectors or patterns evenly spaced around its circumference. The purpose of this design is to create a visual stroboscopic effect when the disc is rotated at specific speeds.
The straboscopic disc is primarily employed in the assessment of eye movements and coordination, particularly for individuals with strabismus, also known as crossed eyes. When the subject fixates on a point while viewing the rotating disc, the intermittent contrast between the black and white sectors gives an illusion of motion, generating a stroboscopic effect. This effect disrupts the normal smooth tracking eye movement, causing the eyes to appear jerky or to make small jumps instead of moving continuously.
By analyzing the eye movements observed while the subject experiences the stroboscopic effect, eye care professionals can gain insights into the health and functionality of the ocular motor system. This diagnostic tool helps determine the presence and severity of any abnormalities in eye coordination, such as strabismus or nystagmus.
Additionally, the straboscopic disc is sometimes utilized in research settings to investigate visual perception, motion processing, and cognitive aspects of visual tracking. The device allows researchers to study how the human visual system adjusts to the flickering visual inputs and how it influences perception, attention, and motor responses.
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A lens which distorts the object looked at.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for STRABOSCOPIC DISC
- atraboscopic disc
- ztraboscopic disc
- xtraboscopic disc
- dtraboscopic disc
- etraboscopic disc
- wtraboscopic disc
- srraboscopic disc
- sfraboscopic disc
- sgraboscopic disc
- syraboscopic disc
- s6raboscopic disc
- s5raboscopic disc
- steaboscopic disc
- stdaboscopic disc
- stfaboscopic disc
- sttaboscopic disc
- st5aboscopic disc
- st4aboscopic disc
- strzboscopic disc
- strsboscopic disc
Etymology of STRABOSCOPIC DISC
The word "straboscopic" is derived from the Greek roots "strabos", meaning "twisting or squinting", and "skopein", meaning "to look at". It refers to a visual effect in which rapidly moving objects appear static or take on a distorted appearance due to the persistence of vision. This effect is typically observed with the aid of a "disc", which in this context refers to a rotating plate with evenly spaced slots or holes. When the disc spins, the viewer perceives a series of still images, resulting in the straboscopic effect. Overall, the term "straboscopic disc" combines the roots related to viewing or observing with the object used to produce the effect.
