CPO CORRECT EXAM SET QUESTIONS AND
ANSWERS SURE A+
✔✔meaningful use - ✔✔using certified electronic health records (EHR) technology to
improve quality, safety, efficiency, and reduce health disparities
to engage patient and family, improve care coordination, and population and public
health, maintain privacy and security of patient health information
✔✔anterior chamber - ✔✔between cornea and iris
filled with aqueous humor-watery fluid
✔✔posterior chamber - ✔✔between iris and lens
the aqueous humor-watery fluid-fills the front part of the posterior chamber
✔✔vitreous chamber - ✔✔between the lens and retina
filled with vitreous humor-thick, clear, jelly-like substance
✔✔aqueous humor - ✔✔-clear, watery fluid
-produced by the ciliary body
-provides nutrients for the lens and posterior cornea and --carries away waste products
-responsible for maintaining IOP-only fluid continually produced in the eye
✔✔What is the aqueous humor produced by? - ✔✔ciliary body
,✔✔Why is the aqueous humor important? (Three reasons) - ✔✔1. provides nutrients for
the lens and posterior cornea
2. carries away waste products
3. maintains IOP
✔✔What is the only fluid continually produced IN the eye? - ✔✔aqueous humor
✔✔choroid - ✔✔between sclera and retina
blood vessels that nourish the retina
✔✔ciliary muscle - ✔✔muscle for accommodation
alters shape of lens
✔✔palpebral conjunctiva - ✔✔clear, cellophane-like tissue that lines the lids
✔✔bulbar conjunctiva - ✔✔clear, cellophane-like tissue that covers the sclera
✔✔5 corneal layers (superficial to deep) - ✔✔1. epithelium
2. Bowman's layer
3. stroma
4. Descemet's membrane
5. endothelium
✔✔Does the lens or the cornea have the most refractive power? - ✔✔Cornea
✔✔Is the cornea vascular or avascular? - ✔✔avascular
✔✔limbus - ✔✔the junction of the sclera and cornea
✔✔fovea centralis - ✔✔depression of macula ~1.5 mm in diameter
VAs sharpest
contains highest number of cones
✔✔What structure of the eye contains the highest number of cones? - ✔✔fovea
centralis
✔✔fundus - ✔✔the bottom/base/inner lining of a hollow organ
interior posterior surface of the eye
in optometry, its referring to as the interior surface of the eye
✔✔What two muscles of the iris are responsible for controlling the size of the pupil? -
✔✔sphincter and dilator muscles
, ✔✔macula - ✔✔part of retina for seeing detail
3-5 mm in diameter
✔✔ocular adnexa - ✔✔the adjacent structures of the eye
✔✔What adjacent structures are considered the ocular adnexa? - ✔✔-eyelids
-eyelashes
-eyebrows
-lacrimal apparatus
-tarsal plates
-orbit
-EOMs
-conjunctiva
✔✔What structure in the eye is insensitive to light and corresponds to the "blind spot" -
✔✔optic disk
✔✔optic disk - ✔✔portion of optic nerve formed by the meeting of all retinal nerve fibers
insensitive to light
appearance of the optic disk can be used to determine the health of the optic nerve
✔✔orbit - ✔✔bony socket that contains the eye and its accessory organs
-roof, medial wall, floor are thin and can be easily damaged by injury, infection, or
tumors
✔✔What parts of the bony orbit are more susceptible to injury, infection, and tumors
due to it being thin - ✔✔roof, medial wall, and floor
✔✔Why is the pupil black? - ✔✔very little light is coming from the dark chamber behind
it
(the posterior chamber)
✔✔rods - ✔✔black/white vision
most numerous (120 million)
most sensitive (night vision, motion detection, peripheral vision)
✔✔How many rods are there in the eye? - ✔✔120 million
✔✔How many cones are there in the eye? - ✔✔6-7 million
✔✔Are rods or cones more sensitive? - ✔✔rods
-night vision, motion detection, peripheral vision
✔✔cones - ✔✔responsible for color vision (red, green, and blue cones)
ANSWERS SURE A+
✔✔meaningful use - ✔✔using certified electronic health records (EHR) technology to
improve quality, safety, efficiency, and reduce health disparities
to engage patient and family, improve care coordination, and population and public
health, maintain privacy and security of patient health information
✔✔anterior chamber - ✔✔between cornea and iris
filled with aqueous humor-watery fluid
✔✔posterior chamber - ✔✔between iris and lens
the aqueous humor-watery fluid-fills the front part of the posterior chamber
✔✔vitreous chamber - ✔✔between the lens and retina
filled with vitreous humor-thick, clear, jelly-like substance
✔✔aqueous humor - ✔✔-clear, watery fluid
-produced by the ciliary body
-provides nutrients for the lens and posterior cornea and --carries away waste products
-responsible for maintaining IOP-only fluid continually produced in the eye
✔✔What is the aqueous humor produced by? - ✔✔ciliary body
,✔✔Why is the aqueous humor important? (Three reasons) - ✔✔1. provides nutrients for
the lens and posterior cornea
2. carries away waste products
3. maintains IOP
✔✔What is the only fluid continually produced IN the eye? - ✔✔aqueous humor
✔✔choroid - ✔✔between sclera and retina
blood vessels that nourish the retina
✔✔ciliary muscle - ✔✔muscle for accommodation
alters shape of lens
✔✔palpebral conjunctiva - ✔✔clear, cellophane-like tissue that lines the lids
✔✔bulbar conjunctiva - ✔✔clear, cellophane-like tissue that covers the sclera
✔✔5 corneal layers (superficial to deep) - ✔✔1. epithelium
2. Bowman's layer
3. stroma
4. Descemet's membrane
5. endothelium
✔✔Does the lens or the cornea have the most refractive power? - ✔✔Cornea
✔✔Is the cornea vascular or avascular? - ✔✔avascular
✔✔limbus - ✔✔the junction of the sclera and cornea
✔✔fovea centralis - ✔✔depression of macula ~1.5 mm in diameter
VAs sharpest
contains highest number of cones
✔✔What structure of the eye contains the highest number of cones? - ✔✔fovea
centralis
✔✔fundus - ✔✔the bottom/base/inner lining of a hollow organ
interior posterior surface of the eye
in optometry, its referring to as the interior surface of the eye
✔✔What two muscles of the iris are responsible for controlling the size of the pupil? -
✔✔sphincter and dilator muscles
, ✔✔macula - ✔✔part of retina for seeing detail
3-5 mm in diameter
✔✔ocular adnexa - ✔✔the adjacent structures of the eye
✔✔What adjacent structures are considered the ocular adnexa? - ✔✔-eyelids
-eyelashes
-eyebrows
-lacrimal apparatus
-tarsal plates
-orbit
-EOMs
-conjunctiva
✔✔What structure in the eye is insensitive to light and corresponds to the "blind spot" -
✔✔optic disk
✔✔optic disk - ✔✔portion of optic nerve formed by the meeting of all retinal nerve fibers
insensitive to light
appearance of the optic disk can be used to determine the health of the optic nerve
✔✔orbit - ✔✔bony socket that contains the eye and its accessory organs
-roof, medial wall, floor are thin and can be easily damaged by injury, infection, or
tumors
✔✔What parts of the bony orbit are more susceptible to injury, infection, and tumors
due to it being thin - ✔✔roof, medial wall, and floor
✔✔Why is the pupil black? - ✔✔very little light is coming from the dark chamber behind
it
(the posterior chamber)
✔✔rods - ✔✔black/white vision
most numerous (120 million)
most sensitive (night vision, motion detection, peripheral vision)
✔✔How many rods are there in the eye? - ✔✔120 million
✔✔How many cones are there in the eye? - ✔✔6-7 million
✔✔Are rods or cones more sensitive? - ✔✔rods
-night vision, motion detection, peripheral vision
✔✔cones - ✔✔responsible for color vision (red, green, and blue cones)
