AP pg 7 and 8

What separates the internal cavity of the eye into anterior and posterior segments?

• Iris and retina
• Cornea and sclera
• Pupil and vitreous body
• Lens and ciliary zonula

What fluid is

in each segment?

• Blood, lymph, or interstitial fluid depending on the segment.
• Saline solution
• Cerebrospinal fluid
• Bile

is in the anterior segment of the eye; produced by capillaries of the ciliary

processes; it drains through the scleral venous sinus (canal of Schlemm) at sclera-cornea

junction

• retinal fluid
• corneal fluid
• aqueous humor
• vitreous humor

is contained in the posterior segment of the eye

• Vitreous humor

• Retina
• Lens
• Cornea

What is a major cause of glaucoma?

• Diabetes mellitus
• Increased intraocular pressure
• Low blood pressure
• High cholesterol levels

is a condition often caused by elevated pressure within the eye due to

obstruction of scleral venous sinus and improper drainage of aqueous humor

• glaucoma
• macular degeneration
• cataracts
• retinal detachment

What is the macula lutea?

• A layer of the cornea that protects the eye.
• area of the retina that contains mostly cones; central vision

• A type of eye disease affecting peripheral vision.
• A type of lens used in glasses for nearsightedness.

area in the center of the macula lutea that contains only cone

• macula densa
• fovea centralis
• optic disc
• retina periphery

high resolution, central, color vision; region with best visual acuity

• peripheral retina
• optic nerve
• lens
• photoreceptors

What causes the blind spot?

• The presence of extra photoreceptor cells in the retina.
• The reflection of light off the cornea.
• The blockage of blood vessels in the eye.
• A lack of photoreceptors at the optic disc where fibers of the optic nerve exit the eye