Explore the human eye's anatomy, from the protective sclera and light-regulating iris to the retina's photoreceptors. Understand how the eye transduces light into neural signals for the brain, enabling sight. Discover the accommodation mechanism for focusing and the visual pathway from the eye to the brain.
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The tough, fibrous layer that provides structural support and protection for the eye
The thin, transparent membrane that produces tears and mucus to keep the eye moist and free from infection
The clear dome-shaped surface at the front of the eye that, along with the lens, refracts light to focus it onto the retina
Clear fluids that fill the eye, maintaining its shape and providing nutrients to avascular structures
The critical layer for vision, containing photoreceptors that detect light and initiate the visual signal
The vital component that fine-tunes the focus of light onto the retina
The process by which the eye changes optical power to maintain a clear image or focus on an object as its distance varies
The ciliary muscles and zonular fibers work together to adjust the shape of the lens for near and distant objects
Photoreceptor cells in the retina that are responsible for detecting light intensity and color, enabling us to perceive the visual world
The extension of the brain that relays visual signals from the retina to the brain
The regulation of light entering the eye through the iris and pupil, crucial for optimal vision and preventing retinal damage
00
The ______ is an advanced sensory organ notable for its color perception range.
human eye
01
The ______ contrasts with the iris and pupil, aiding in non-verbal communication by showing gaze direction.
sclera
02
Photoreceptor cells in the retina, known as ______ and ______, change light into signals for the brain.
rods
cones
