ABO sample Questions with Complete
Solutions20
When light is refraction by a prism it is:
a. Bent toward the apex
b, Bent toward the base
c. Not bent
d. Reflected - ANSWERS-B. Bent toward the base
A prism always bends light toward its base.
Prisms:
I. Always bend light toward the base
II. Always bend light toward the apex
III. Cause chromatic Dispersion
IV. Move the image toward the apex
V. Are sometimes prescribed for muscle problems - ANSWERS-I. Always bend light toward base
III. Cause chromatic dispersion.
IV. Move the image toward the apex.
V. are sometimes prescribed for muscle problems
Plus lenses are:
I. are thicker in the center than at the edges
II. Are used to correct myopia
III. Are used by all presbyopes
IV. Must be surfaced individually in the laboratory - ANSWERS-I. Are thicker in the center than at
the edges.
,Which of the following does not describe a minus lens
a, The image moves with motion
b. Thicker at the edge than in the center
c. Magnifies the image
d. Corrects for myopia - ANSWERS-c. A minus lens minifies, not maginfies
The parts of the eye that refract light are:
a. Cornea, Aqueous humor, lens and vitreous humor
b. Cornea, Iris, and lens
c.Retina, choriod, lens, and aqueous humor
d. cornea, lens, and pupil - ANSWERS-A. Cornea, Aqueous humor, lens and vitreous humor.
Where the sclera and the cornea meet is called the
a. Iris
b. Limbus
c. Ora serrata
d. conjunctiva - ANSWERS-B. Limbus
A cataract is:
a. A film over the eye
b. a cloudiness of the crystalline lens
c. removal of the crystalline lens
d. an internal ptergium - ANSWERS-b. A cloudiness of the crystalline lens
A cataract may also be referred to as opacification of the lens. removal or absence of the
crystalline lens is aphakia
, Near visual acuity is often abbreviated as:
a. 20/40
b. 10/10
c. N. 15
d. J.2 - ANSWERS-D. J.2
Distance visual acuity usually has two numbers. It is a comparison of the distance a patient is
from the target to what an average person can see at that distance. One of the most common
tests for visual acuity is the Jaeger test Card. The results are signified by the letter J with a
number.
Myopia can be attributed to
a. Loss of accommodation.
b a shorter than normal eyeball
c. a longer than normal eyeball
d. astigmatism - ANSWERS-C. a longer than normal eyeball
Myopia is a condition of distance vision. It is caused by the refracting system of the eye having
too much plus power for length, or the eye being too long for its power.
Eyeglasses can relieve or correct all of the following conditions except:
a. A scotoma
b. Presbyopia
c. Simple astigmatism
d. Mixed astigmatism - ANSWERS-a. A scotoma
A scotoma is a "blind spot" of the retina. no glasses can correct it.
The condition known as second sight is often associated with:
Solutions20
When light is refraction by a prism it is:
a. Bent toward the apex
b, Bent toward the base
c. Not bent
d. Reflected - ANSWERS-B. Bent toward the base
A prism always bends light toward its base.
Prisms:
I. Always bend light toward the base
II. Always bend light toward the apex
III. Cause chromatic Dispersion
IV. Move the image toward the apex
V. Are sometimes prescribed for muscle problems - ANSWERS-I. Always bend light toward base
III. Cause chromatic dispersion.
IV. Move the image toward the apex.
V. are sometimes prescribed for muscle problems
Plus lenses are:
I. are thicker in the center than at the edges
II. Are used to correct myopia
III. Are used by all presbyopes
IV. Must be surfaced individually in the laboratory - ANSWERS-I. Are thicker in the center than at
the edges.
,Which of the following does not describe a minus lens
a, The image moves with motion
b. Thicker at the edge than in the center
c. Magnifies the image
d. Corrects for myopia - ANSWERS-c. A minus lens minifies, not maginfies
The parts of the eye that refract light are:
a. Cornea, Aqueous humor, lens and vitreous humor
b. Cornea, Iris, and lens
c.Retina, choriod, lens, and aqueous humor
d. cornea, lens, and pupil - ANSWERS-A. Cornea, Aqueous humor, lens and vitreous humor.
Where the sclera and the cornea meet is called the
a. Iris
b. Limbus
c. Ora serrata
d. conjunctiva - ANSWERS-B. Limbus
A cataract is:
a. A film over the eye
b. a cloudiness of the crystalline lens
c. removal of the crystalline lens
d. an internal ptergium - ANSWERS-b. A cloudiness of the crystalline lens
A cataract may also be referred to as opacification of the lens. removal or absence of the
crystalline lens is aphakia
, Near visual acuity is often abbreviated as:
a. 20/40
b. 10/10
c. N. 15
d. J.2 - ANSWERS-D. J.2
Distance visual acuity usually has two numbers. It is a comparison of the distance a patient is
from the target to what an average person can see at that distance. One of the most common
tests for visual acuity is the Jaeger test Card. The results are signified by the letter J with a
number.
Myopia can be attributed to
a. Loss of accommodation.
b a shorter than normal eyeball
c. a longer than normal eyeball
d. astigmatism - ANSWERS-C. a longer than normal eyeball
Myopia is a condition of distance vision. It is caused by the refracting system of the eye having
too much plus power for length, or the eye being too long for its power.
Eyeglasses can relieve or correct all of the following conditions except:
a. A scotoma
b. Presbyopia
c. Simple astigmatism
d. Mixed astigmatism - ANSWERS-a. A scotoma
A scotoma is a "blind spot" of the retina. no glasses can correct it.
The condition known as second sight is often associated with:
