ANSWERS MARKED A+
When optic nerve damage is present because the rate of aqueous drainage is not equal
to the production of aqueous, the following condition is diagnosed:
G________________ - ✔✔glaucoma
The type of drug used to paralyze accommodation is a c__________________ -
✔✔cycloplegic
Loss of focusing ability that relates to the process of aging is called
HINT:
p_______________ - ✔✔presbyopia
the choroid lies between the s________ and the r_________ - ✔✔sclera & the retina
The part of the retina that is used when reading an eye chart is the:
HINT:
m_____________ - ✔✔macula
The retina is comprised of __ layers - ✔✔10 Layers
Explain the reason viewing color is more difficult in dim illumination.
HINT:
Cones w________ are r________________ for c_________ d_______________ ,
s_________________ by l_______ . - ✔✔Cones, which are responsible for color
discrimination, stimulated by light.
Describe the function of the eye's crystalline lens.
, HINT:
Allows F_______ on n________ o___________
OR KNOWN AS (ACC_________________ ) - ✔✔Allows focus on near objects
(accommodation)
cloudiness of the crystalline lens is known as a
HINT:
c________________. - ✔✔Cataract
At what point do the fibers from the nasal retinal of each eye cross in the visual
pathway?
HINT:
ch________ - ✔✔Chiasm
What type of visual field defect will be present if damage occurs to this area?
HINT:
B__________________ H_____________________ - ✔✔Bitemporal Hemianopsia
List the six extraocular muscles
, HINT:
1.M____________ r__________
2. in____________ r___________
3.L_____________ r___________
4.S________________ r__________
5.S________________ o______________
6.in____________ o____________ - ✔✔1.Medial rectus
2.Inferior rectus
3.lateral rectus
4.superior rectus
5.superior oblique
6.inferior oblique
An eye Movement in which both eyes move toward the nose is called:
HINT:
C_______________________ - ✔✔convergence
CHAPTER 3-REFRACTIVE STATUS - ✔✔
Optical infinity is considered to be a distance of approximately 20 ft, or 6 meters,
because light rays are virtually P___________ at this distance - ✔✔parallel
What two factors influence the path of a light ray as it passes through a transparent
medium ?
HINT:
A________ of i________________ , the i______ of r______________ . - ✔✔Angle of
incidence, the index of refraction
The speed of light in a vacuum is:
, HINT:
__________________ m________ per s_______________ - ✔✔186,000 miles per
second
Through which of the following types of glass will light travel the slowest?
HINT:
F______ g _______ , W__________ has an i______ of r________________ of 1.65. -
✔✔Flint glass, which has an index of refraction of 1.65
Which of the following statements is incorrect concerning a convex lens?
HINT:
p___________ L___________ R______ converge in f_________ of a c_________
l_____ - ✔✔Parallel light rays converge in front of a convex lens.
Which of the following statements Is INCORRECT concerning a concave lens?