Vision Flashcards
Cornea
Clear boundary in front.
Light passes through.
Contains aqueous humor
Iris
Eye color
Forms boundary of pupil
Lens are suspended by what two things?
Zonule Fibers and Ciliary Muscle
What percentage makes up the posterior chamber?
80 Percent
Sclera
Tough white connective tissue
Fovea
Forms the focal point for the lens
Optic Nerve
Carries visual information to the rest of the brain
Optic nerve exits the eye through the ?
Optic Disk
What does the optic nerve penetrate?
Sclera
What is the job of the cornea, pupil and lens?
Formation of images on the retina
What is primarily responsible for focus of light? It has a refractive index to bend light to focus on the retina. Focusing images to the retina.
Cornea
What component constricts?
Pupil
What are some effects of the pupil constricting?
Reduces spherical and chromatic aberration
Increases depth of field
Limits amount of light (can reduce acuity)
Spherical and chromatic aberration?
Light goes through the center rather than edges.
What component involves accommodation?
Lens