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The neural layer of the retina is mainly composed of these three types of neurons.
- photoreceptors (rods and cones)
- bipolar cells
- ganglion cells
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The weak spot of the fundus (posterior wall) that lacks photoreceptors. Also called the "blind spot".
Optic disc
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Photoreceptors that are more numerous. Are dim-light and peripheral vision receptors.
Rods
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Photoreceptors which operate in bright light and high color.
Cones
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Neurons of retina that respond to light.
Photoreceptors
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Neurons of retina that are the locations for generation of action potential.
Ganglion cells
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Path of light entering the eye.
1.
2.
3.
4.
5.
- Cornea,
- aqueous humor,
- lens,
- vitreous humor,
- then through entire thickness of neural layer.
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Vision problem in which distant objects are focused in front of the retina, making them blurry. Typically results from an eyeball being too long. Corrected with concave lenses.
Myopia, nearsightedness
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Vision problem in which light rays are focused behind the retina. Close objects appear blurry. A result of an eyeball being too short. Corrected with convex lenses.
Hyperopia, farsightedness
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Unimpaired, normal vision.
Emmetropic
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