ABO STUDY SHEET TEST PAPER Questions with Correct
Answers (Grade A+)
Question 1: The fibrous tunic is comprised of the:.
Answer: Sclera and cornea
Question 2: Fusion occurs:.
Answer: In the brain
Question 3: The aqueous fluid is continually being manufactured by:.
Answer: The ciliary body
Question 4: The ability of the eye to bring objects of varying distances to focus on the retina is known
as:.
Answer: Accommodation
Question 5: When accommodation is at rest, rays of light from a distant source come to focus behind
the retina. This condition is known as:.
Answer: Hyperopia
Question 6: Impulses are carried from the retina to the brain along the:.
Answer: Optic nerve
Question 7: That area of the retina capable of perceiving the greatest amount of detail is:.
Answer: Fovea centralis
Question 8: The average cornea has a refractive power of approximately:.
Answer: 43 diopters
Question 9: The layer of the cornea which is highly regenerative is:.
Answer: The epithelium
Question 10: Night vision is chiefly a function of the:.
Answer: Rods
Page 1
,Question 11: A tendency of the visual axis to deviate inward while the eyes are in a position of rest is
known as:.
Answer: Esophoria
Question 12: A "farsighted" eye is one that is:.
Answer: Hyperopic
Question 13: The term used to indicate "double vision" is:.
Answer: Diplopia
Question 14: The condition in which the ability to accommodate for near vision becomes inadequate
because of loss of elasticity of the crystalline lens is called:.
Answer: Presbyopia
Question 15: When there is a loss of vision without any apparent disease of the eye it is known as:.
Answer: Amblyopia
Question 16: A refractive error in which the rays of light do not come to a single point of focus is
called:.
Answer: Astigmatism
Question 17: The condition in which the crystalline lens of the eye gradually loses its transparency with
consequent loss of visual acuity is known as:.
Answer: Cataract
Question 18: An ocular disease having as its primary characteristic a sustained increase in intraocular
pressure.
Answer: Glaucoma
Question 19: The space between the front of the iris and the innermost portion of the cornea (the
endothelium), this space is filled with aqueous.
Answer: Anterior chamber
Question 20: A tendency of one eye to deviate upward is:.
Answer: Hyperphoria
Page 2
,Question 21: The layer of the cornea which comprises ninety percent of its thickness is:.
Answer: The stroma
Question 22: A condition in which the refractive error of one eye significantly differs from that of the
other and where both eyes have the same sign (i.e. both eyes are myopic or hyperopic) is known as:.
Answer: Anisometropia
Question 23: The refractive error which results in two points of focus falling behind the retina is:.
Answer: Compound hyperopic astigmatism
Question 24: The refractive condition caused by a damaged cornea so that rays of light come to many
focal points on the retina is known as:.
Answer: Irregular astigmatism
Question 25: The index of refraction of the crystalline lens is:.
Answer: 1.42
Question 26: The index of refraction of the cornea is:.
Answer: 1.37
Question 27: Myopia means the eye
A. is nearsighted
B. has distance blur
C. requires a (-) minus lens
D. all of the above.
Answer: D. all of the above
Question 28: The Retina contains
A. lab tools
B. lens information
C. light receptors
D. understock of frames.
Answer: C. light receptors
Page 3
, Question 29: Hyperopic people have difficulty seeing
A. distance objects
B. near objects
C. everything
D. nothing.
Answer: B. near objects
Question 30: How many ranges of vision do bifocals provide?
A. one
B. Three
C. Two
D. Infinite.
Answer: C. Two
Question 31: The top portion of a bifocal allows wearers to see:
A. objects in the distance
B. a & c
C. objects beyond arm's length
D. objects up to 18 inches.
Answer: B. a & c
Question 32: Characteristics of a plus (+) lens include:
A. thin center
B. minifies objects
C. converges light rays
D. corrects myopia.
Answer: C. converges light rays
Question 33: Polycarbonate lens material is:
A. heavy
B. tintable
C. most impact resistant material
D. totally scratch resistant.
Answer: C. most impact resistant material
Page 4
Answers (Grade A+)
Question 1: The fibrous tunic is comprised of the:.
Answer: Sclera and cornea
Question 2: Fusion occurs:.
Answer: In the brain
Question 3: The aqueous fluid is continually being manufactured by:.
Answer: The ciliary body
Question 4: The ability of the eye to bring objects of varying distances to focus on the retina is known
as:.
Answer: Accommodation
Question 5: When accommodation is at rest, rays of light from a distant source come to focus behind
the retina. This condition is known as:.
Answer: Hyperopia
Question 6: Impulses are carried from the retina to the brain along the:.
Answer: Optic nerve
Question 7: That area of the retina capable of perceiving the greatest amount of detail is:.
Answer: Fovea centralis
Question 8: The average cornea has a refractive power of approximately:.
Answer: 43 diopters
Question 9: The layer of the cornea which is highly regenerative is:.
Answer: The epithelium
Question 10: Night vision is chiefly a function of the:.
Answer: Rods
Page 1
,Question 11: A tendency of the visual axis to deviate inward while the eyes are in a position of rest is
known as:.
Answer: Esophoria
Question 12: A "farsighted" eye is one that is:.
Answer: Hyperopic
Question 13: The term used to indicate "double vision" is:.
Answer: Diplopia
Question 14: The condition in which the ability to accommodate for near vision becomes inadequate
because of loss of elasticity of the crystalline lens is called:.
Answer: Presbyopia
Question 15: When there is a loss of vision without any apparent disease of the eye it is known as:.
Answer: Amblyopia
Question 16: A refractive error in which the rays of light do not come to a single point of focus is
called:.
Answer: Astigmatism
Question 17: The condition in which the crystalline lens of the eye gradually loses its transparency with
consequent loss of visual acuity is known as:.
Answer: Cataract
Question 18: An ocular disease having as its primary characteristic a sustained increase in intraocular
pressure.
Answer: Glaucoma
Question 19: The space between the front of the iris and the innermost portion of the cornea (the
endothelium), this space is filled with aqueous.
Answer: Anterior chamber
Question 20: A tendency of one eye to deviate upward is:.
Answer: Hyperphoria
Page 2
,Question 21: The layer of the cornea which comprises ninety percent of its thickness is:.
Answer: The stroma
Question 22: A condition in which the refractive error of one eye significantly differs from that of the
other and where both eyes have the same sign (i.e. both eyes are myopic or hyperopic) is known as:.
Answer: Anisometropia
Question 23: The refractive error which results in two points of focus falling behind the retina is:.
Answer: Compound hyperopic astigmatism
Question 24: The refractive condition caused by a damaged cornea so that rays of light come to many
focal points on the retina is known as:.
Answer: Irregular astigmatism
Question 25: The index of refraction of the crystalline lens is:.
Answer: 1.42
Question 26: The index of refraction of the cornea is:.
Answer: 1.37
Question 27: Myopia means the eye
A. is nearsighted
B. has distance blur
C. requires a (-) minus lens
D. all of the above.
Answer: D. all of the above
Question 28: The Retina contains
A. lab tools
B. lens information
C. light receptors
D. understock of frames.
Answer: C. light receptors
Page 3
, Question 29: Hyperopic people have difficulty seeing
A. distance objects
B. near objects
C. everything
D. nothing.
Answer: B. near objects
Question 30: How many ranges of vision do bifocals provide?
A. one
B. Three
C. Two
D. Infinite.
Answer: C. Two
Question 31: The top portion of a bifocal allows wearers to see:
A. objects in the distance
B. a & c
C. objects beyond arm's length
D. objects up to 18 inches.
Answer: B. a & c
Question 32: Characteristics of a plus (+) lens include:
A. thin center
B. minifies objects
C. converges light rays
D. corrects myopia.
Answer: C. converges light rays
Question 33: Polycarbonate lens material is:
A. heavy
B. tintable
C. most impact resistant material
D. totally scratch resistant.
Answer: C. most impact resistant material
Page 4
