Eye Structures & Function Flashcards
Cornea
Controls and focuses light
Lens
Changes focal distance
Pupil
Controls amount of light let into the eye
Anterior segment
Holds aqueous humor and provides nutrients for the eye
Posterior chamber
Holds aqueous humor and provides nutrients for the eye
Ciliary body
Produces aqueous humor
Sclera
Protects and shapes eye, and is the place of anchoring for muscles
Choroid
Nourishes, prevents light scatter
Retina
Converts light into neuron signals
Fovea centralis
Gives sharp central vision
Macula lutea
Gives detailed central vision
Ciliary zonule
Aqueous humor production and reabsorption
Optic disk (blind spot)
Point of exit for ganglion cells
Optic nerve
Transfers visual information from retina to vision center
Posterior segment
Contains vitreous humor