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Eye Anatomy
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Cornea
Focuses light into the eye
Iris
Controls the diameter of the pupil and thus the amount of light reaching the retina
Pupil
Allows light to enter the eye
Lens
Further focuses light onto the retina
Retina
Receives focused light and converts it into neural signals
Rods
Photoreceptors responsible for vision at low light levels
Cones
Photoreceptors responsible for color vision and visual acuity
Macula
Responsible for central vision
Fovea
Provides the clearest vision of all
Optic nerve
Transmits visual information from the retina to the brain
Vitreous humor
Maintains eye shape and optical properties
Sclera
Protects the internal structure of the eye and provides an attachment for the ocular muscles
Choroid
Provides oxygen and nourishment to the outer layers of the retina
Ciliary body
Controls the shape of the lens and secretes the aqueous humor
Aqueous humor
Maintains intraocular pressure and provides nutrients to the eye
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