JCAHPO COA (Optometry) REVISION STUDY
MULTIPLE CHOICE QUESTIONS AND VERIFIED
SOLUTIONS RATED A.
Evaluating the range and symmetry of motion of both eyes together is known
as:
a. ductions
b. versions
c. phorias
d. tropias
B
which tool is a series of red cylinders to assess phorial?
a. worth four dot
b. ishihara plates
c. maddox rod
d. marcus gunn
C
Which test uses prism to center the corneal reflex
A. Hess
B Worth four dot
C. Hirschberg
D. Krimsky
D
how many nerves innervate the six extracular muscles?
a. 1
b. 2
c. 3
d. 4
C
,a patient's prescription from a referring doctor is written in minus cylinder
notation, while your ophthalmologist works in plus cylinder. transpose the
following prescription:
+2.25-0.75x165, +3.75-1.25x03.
a. +1.50+0.75x75 +2.50+1.25x93
b.+1.50+0.75x165 +2.50+1.25x03
c. +1.50-0.75x165 +2.50-1.25x03
d. -1.50+0.75x75 -3.75+1.25x93
A
on the back of a frame are a few figures such as 46x22. what do these numbers
represent?
a. bridge and lens size
b. pupillary distance and segment height
c. lens and bridge size
d. segment height and pupillary
C
what is the ONLY accurate method for measuring pupillary distance?
a. pupil gauge
b. light reflex method
c.ruler
d. dark reflex method
B
a lens with a focal length of 2 meters has a power of :
a. 0.50D .
b. 1.00 D.
c. 2.00D
d. 5.00 D
A
What part of the spectacle frame connects the two lenses?
a. temple
b. cover
,c. Rim
d. bridge
D
The measurement used to determine the distance between the optical centers of
spectacle lenses is the:
a. pupillary distance
b. Axial length
c. vertex distance
d. refractive error
A
Visual acuity of 6/12 is equivalent to :
a. 20/20
b. 20/30
c. 20/40
d. 20/50
C
what is the principal reason for the routine preference of subjective over
objective refraction?
a. automated retinoscopy systems make refraction efficient
b. the jackson cross cylinder is easy to use.
c. sphero-cylinder evaluation is easy.
d. the patient's preference is considered in the process.
D
the fact that most glasses have a downward tilt to minimize oblique
astigmatism is called
a. interpupillary distance.
b. pantoscopic tilt.
c. oblique astigmatism
d. image displacement .
B
what is the result of a loss of accommodation?
a. myopia
, b. hyperopia
c. presbypia
d. amblyopia
C
what is the ocular structure with the greatest refractive power?
a. cornea
b. lens
c. pupil
d. retina
A
What test illuminates the screen with a filter that is red on one side and green on
the other?
a. worth four dot
b. ishihara
c. duochrome
d. maddox
C
the distance from the anterior surface of the ey to the back surface of the
spectacle lens is the?
a. base curve.
b. pupillary distance.
c. lens distance.
d. vertex distance
D
Retinoscopy is an example of what type of refractometry?
a. objective
b. subjective
c. immediate
d. letent
A
what is the term for the "bending of light"?
a. dispersion
MULTIPLE CHOICE QUESTIONS AND VERIFIED
SOLUTIONS RATED A.
Evaluating the range and symmetry of motion of both eyes together is known
as:
a. ductions
b. versions
c. phorias
d. tropias
B
which tool is a series of red cylinders to assess phorial?
a. worth four dot
b. ishihara plates
c. maddox rod
d. marcus gunn
C
Which test uses prism to center the corneal reflex
A. Hess
B Worth four dot
C. Hirschberg
D. Krimsky
D
how many nerves innervate the six extracular muscles?
a. 1
b. 2
c. 3
d. 4
C
,a patient's prescription from a referring doctor is written in minus cylinder
notation, while your ophthalmologist works in plus cylinder. transpose the
following prescription:
+2.25-0.75x165, +3.75-1.25x03.
a. +1.50+0.75x75 +2.50+1.25x93
b.+1.50+0.75x165 +2.50+1.25x03
c. +1.50-0.75x165 +2.50-1.25x03
d. -1.50+0.75x75 -3.75+1.25x93
A
on the back of a frame are a few figures such as 46x22. what do these numbers
represent?
a. bridge and lens size
b. pupillary distance and segment height
c. lens and bridge size
d. segment height and pupillary
C
what is the ONLY accurate method for measuring pupillary distance?
a. pupil gauge
b. light reflex method
c.ruler
d. dark reflex method
B
a lens with a focal length of 2 meters has a power of :
a. 0.50D .
b. 1.00 D.
c. 2.00D
d. 5.00 D
A
What part of the spectacle frame connects the two lenses?
a. temple
b. cover
,c. Rim
d. bridge
D
The measurement used to determine the distance between the optical centers of
spectacle lenses is the:
a. pupillary distance
b. Axial length
c. vertex distance
d. refractive error
A
Visual acuity of 6/12 is equivalent to :
a. 20/20
b. 20/30
c. 20/40
d. 20/50
C
what is the principal reason for the routine preference of subjective over
objective refraction?
a. automated retinoscopy systems make refraction efficient
b. the jackson cross cylinder is easy to use.
c. sphero-cylinder evaluation is easy.
d. the patient's preference is considered in the process.
D
the fact that most glasses have a downward tilt to minimize oblique
astigmatism is called
a. interpupillary distance.
b. pantoscopic tilt.
c. oblique astigmatism
d. image displacement .
B
what is the result of a loss of accommodation?
a. myopia
, b. hyperopia
c. presbypia
d. amblyopia
C
what is the ocular structure with the greatest refractive power?
a. cornea
b. lens
c. pupil
d. retina
A
What test illuminates the screen with a filter that is red on one side and green on
the other?
a. worth four dot
b. ishihara
c. duochrome
d. maddox
C
the distance from the anterior surface of the ey to the back surface of the
spectacle lens is the?
a. base curve.
b. pupillary distance.
c. lens distance.
d. vertex distance
D
Retinoscopy is an example of what type of refractometry?
a. objective
b. subjective
c. immediate
d. letent
A
what is the term for the "bending of light"?
a. dispersion
