When light enters the eye, it passes through the cornea, then the lens, and ultimately reaches the retina at the back of the eye. Here, light triggers a chemical reaction in the cells of the retina called photoreceptors, specifically in rods and cones, which convert the light into electrical impulses that are then transmitted to the brain via the optic nerve.
light stimuli which is converted into electrical impulse (current)and then is transmitted to the occipital area of the brain . The image seen by the right eye is transmitted to the left hemisphere and viceversa.
The lens of the eye also called the crystalline lens.
The iris is the part of the eye that changes size to regulate the amount of light that enters the eye. It controls the size of the pupil, which expands in low light conditions to let in more light and constricts in bright light to reduce the amount of light entering the eye.
Pupil is a window for the light to enter our eyes. When we are in a dim light a nerve impulse is generated to the brain to enlarge the pupil. Size of pupil is managed by the iris (coloured part of the eye). If excessive light is there, the pupil shrinks to a smaller size so that the eye's not damaged esp. the retina where the image of objects are formed
The iris, which is the colored part of the eye, regulates the amount of light that goes into the eye by controlling the size of the pupil. The muscles in the iris can expand or contract the pupil in response to changes in light intensity.
light stimuli which is converted into electrical impulse (current)and then is transmitted to the occipital area of the brain . The image seen by the right eye is transmitted to the left hemisphere and viceversa.
The most imortant part of the eye that changes the direction of light is the LENS, though the cornea does do a little of the inital focusing.
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The pupil absorbs light.
First you must understand how light is transferred into an image by the eye. Located in the retina at the back of the eye are millions of photoreceptors. The way I understand them to work is they are constantly blocking any impules from themselves to the next connection, ganglions. When light hits these potoreceptors, the impulse is released, travels through the ganglion, and then is transmitted to the actual optic nerve. So according to this question, the photoreceptors are the trigger of light to impulse, but the answer to your question is the ganglion that transmitts the impulse to the optic nerve.
First you must understand how light is transferred into an image by the eye. Located in the retina at the back of the eye are millions of photoreceptors. The way I understand them to work is they are constantly blocking any impules from themselves to the next connection, ganglions. When light hits these potoreceptors, the impulse is released, travels through the ganglion, and then is transmitted to the actual optic nerve. So according to this question, the photoreceptors are the trigger of light to impulse, but the answer to your question is the ganglion that transmitts the impulse to the optic nerve.
impulse
The lens of the eye also called the crystalline lens.
The opening at the front of the eye through which light passes is called the pupil. The pupil changes size to regulate the amount of light entering the eye by contracting in bright light and dilating in dim light.
The iris is the part of the eye that changes size to regulate the amount of light that enters the eye. It controls the size of the pupil, which expands in low light conditions to let in more light and constricts in bright light to reduce the amount of light entering the eye.
Pupil is a window for the light to enter our eyes. When we are in a dim light a nerve impulse is generated to the brain to enlarge the pupil. Size of pupil is managed by the iris (coloured part of the eye). If excessive light is there, the pupil shrinks to a smaller size so that the eye's not damaged esp. the retina where the image of objects are formed
The reflex in the eye helps to maintain homeostasis by regulating the amount of light that enters the eye. This reflex adjusts the size of the pupil in response to changes in light intensity, ensuring that the appropriate amount of light reaches the retina for optimal vision.