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Ergonomics M1

ERGL - M1

TermDefinition
Vision is the ability to see
Vision a process where the eyes and brain work together
Vision the process uses light reflecting off objects
Cornea is the clear, outermost layer of the eye
Cornea it acts like a window letting light into the eye and begins the process of focusing
Pupil is the opening in the center of the iris
Pupil it regulates how much light enters the eye: in bright light it constricts, in dim light it dilates
Iris the colored part of the eye that acts like a camera shutter by controlling its size
Iris in bright light, the __ makes the pupil smaller to reduce light entry and in dim light, it makes the pupil larger to let in more light
Lens a transparent, flexible structure located just behind the iris and pupil. Its main job is to focus light onto the retina at the back of the eye
Lens changes it shapes to keep vision clear
Accomodation reflex the process where the lens changes its shape to keep vision clear
Retina is a thin layer of tissue at the back of the eye that functions like a camera sensor.
Retina contains about 130 million light sensitive cells that capture light and convert it into electrical signals, which are then sent to the brain for image processing
Macula the cones in this part of the retina are essential for seeing colors and finer details and allows you to do things like read, see faces and drive
Peripheral retina it allows you to see to the side when you're looking straid ahead and the rods in this part of the retina also help you see in low light
Optical nerve is comprised of millions of nerve fibers that send visual images to your brain to help you see.
Pupil reflexes automatically adjust the pupils to control light intake
Accomodation reflex adjust the eyes lens shape to focus on object
Circadian rhythm signal light levels to the brain, helping regulate sleep/wake cycles, blood pressure, body temperature and blood sugar
the Brain your eyes only capture but its __ that turns those signals into images you perceive
Visual cortex processes these signals so that we perceive the world as upright
Recognition and Interpretation it is the final stage of visual processing
Created by: romulols
 

 



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