CPOA LVC (Answered) 194 Multiple choice
Questions and Correct Answers | 100% Verified
Solution | Latest 2025/2026.
Keratometry is the measurement of ___________
A. The anterior segment angle
B. Corneal curvature
C. Corneal width
D. The crystalline lens curvature
B. Corneal Curvature
The cornea supplies approximately ___________ of the refractive power of the eye.
A. 1/3
B. 1/2
C. 2/3
D. 1/4
C. 2/3
What are the readings or measurements from the keratometer called?
A. K readings
B. M readings
C. Mires
D. C readings
A. K readings
An example of indentation tonometry is ____________
A. Goldmann tonometry
B. Noncontact tonometry
C. Tono-Pen
D. Schiotz tonometry
D. Schiotz tonometry
Another term for keratometry is __________
A. Ophthalmometry
B. Retinoscopy
C. Refractometry
D. Tonometry
A. Ophthalmometry
,A tonometer that needs to be used with corneal anesthetic and fluroescein is ___________
A. Goldmann tonometer
B. Noncontact tonometer
C. Tono-Pen
D. Schiotz tonometer
A. Goldmann tonometer
A tonometer that will release a puff of air on the cornea after the patient is instructed to look at the
red dot in the instrument and everything is properly aligned and focused is ___________
A. Goldmann tonometer
B. Noncontact tonometer (NCT)
C. Tono-Pen tonometer
D. Schiotz tonometer
B. Noncontact tonometer (NCT)
The probe of the ___________ tonometer must be covered with a Ocu-Film tip cover to prevent
patient infection and cross contamination
A. Goldmann
B. Noncontact
C. Tono-Pen
D. Schhiotz
C. Tono-Pen
The best electronic hand-held tonometer that is portable is the ____________
A. Goldmann tonometer
B. Noncontact tonometer (NCT)
C. Tono-Pen tonometer
D. Schiotz tonometer
C. Tono-Pen tonometer
The instrument used to determine the length of the eyeball in order to calculate properly the power
of the intraocular lens to be implanted after cataract removal is ____________
A. Goldmann tonometer
B. A-scan
C. B-scan
D. Corneal topographer
B. A-scan
Changing the test distance from 1m to 2m on a tangent screen will result in which of the following?
A. A smaller area of the visual field being tested
B. A larger area of the visual field being tested
,C. No change in blind spot size
D. The blind spot size will be smaller
B. A larger area of the visual field being tested
An area within the visual field with absent vision or depressed sensitivity is ___________
A. An abrasion
B. A hordeolum
C. A pterygium
D. A scotoma
D. A Scotoma
A boundary of the visual field in which a target of given value is visible is __________
A. A meter
B. A diopter
C. An isopter
D. A centimeter
C. An isopter
Which is NOT a method used for monitoring fixation?
A. Direct visualization of the pupil through a periscope or video monitor
B. Corneal reflecltion system
C. Heijl-Krakau method
D. Dilating the eyes
D. Dilating the eyes
Amsler grid testing is normally used when which one of the following is present?
A. Visual acuity is normal
B. Visual acuity is abnormal
C. Color vision is abnormal
D. A lateral phoria is present
B. Visual acuity is abnormal
Because of its' design, an arc perimeter is ___________
A. Able to test the central visual field
B. Unable to test the peripheral visual field
C. Unable to test the central visual field
D. Able to test for vertical phorias
C. Unable to test the central visual field
When performing visual field testing, the blind spot ____________
A. Does not need to be mapped
, B. Should be mapped first
C. Is mapped at the end of the test
D. Is always on the nasal side of the visual field
B. Should be mapped first
When performing visual field testing, the room illumination __________
A. Has an effect on the results of the visual field test
B. Can be changed during the test
C. Has no effect on the results of the visual field test
D. Is not a concern of the paraoptometric
A. Has an effect on on the results of the visual field test
The fixation monitoring method that periodically presents targets in the physiological blind spot is
called ___________
A. Mosaic monitor
B. Corneal reflection system
C. Direct visualization
D. Heijl-Krakau method
D. Heijl-Krakau method
What visual field testing instrument uses 10mm size square black-on-white or white-on-black
pattern of horizontal and vertical lines forming a larger square subdivided in 20 by 20 box formation?
A. Amsler Grid
B. Tangent Screen
C. Arc Perimeter
D. Harrington Flocks Visual Filed screener
A. Amsler Grid
How long should the tear film remain uniform over the cornea after a normal blink (tear break-up
time)?
A. 5-10 seconds
B. 10-15 seconds
C. 15-20 seconds
D. 20-25 seconds
B. 10-15 seconds
Patients who show ____________ or more of corneal astigmatism as demonstrated by keratometry
are good candidates for a special posterior lens design called toric
A. 1.00 D
B. 1.50 D
C. 2.00 D
D. 2.50 D
Questions and Correct Answers | 100% Verified
Solution | Latest 2025/2026.
Keratometry is the measurement of ___________
A. The anterior segment angle
B. Corneal curvature
C. Corneal width
D. The crystalline lens curvature
B. Corneal Curvature
The cornea supplies approximately ___________ of the refractive power of the eye.
A. 1/3
B. 1/2
C. 2/3
D. 1/4
C. 2/3
What are the readings or measurements from the keratometer called?
A. K readings
B. M readings
C. Mires
D. C readings
A. K readings
An example of indentation tonometry is ____________
A. Goldmann tonometry
B. Noncontact tonometry
C. Tono-Pen
D. Schiotz tonometry
D. Schiotz tonometry
Another term for keratometry is __________
A. Ophthalmometry
B. Retinoscopy
C. Refractometry
D. Tonometry
A. Ophthalmometry
,A tonometer that needs to be used with corneal anesthetic and fluroescein is ___________
A. Goldmann tonometer
B. Noncontact tonometer
C. Tono-Pen
D. Schiotz tonometer
A. Goldmann tonometer
A tonometer that will release a puff of air on the cornea after the patient is instructed to look at the
red dot in the instrument and everything is properly aligned and focused is ___________
A. Goldmann tonometer
B. Noncontact tonometer (NCT)
C. Tono-Pen tonometer
D. Schiotz tonometer
B. Noncontact tonometer (NCT)
The probe of the ___________ tonometer must be covered with a Ocu-Film tip cover to prevent
patient infection and cross contamination
A. Goldmann
B. Noncontact
C. Tono-Pen
D. Schhiotz
C. Tono-Pen
The best electronic hand-held tonometer that is portable is the ____________
A. Goldmann tonometer
B. Noncontact tonometer (NCT)
C. Tono-Pen tonometer
D. Schiotz tonometer
C. Tono-Pen tonometer
The instrument used to determine the length of the eyeball in order to calculate properly the power
of the intraocular lens to be implanted after cataract removal is ____________
A. Goldmann tonometer
B. A-scan
C. B-scan
D. Corneal topographer
B. A-scan
Changing the test distance from 1m to 2m on a tangent screen will result in which of the following?
A. A smaller area of the visual field being tested
B. A larger area of the visual field being tested
,C. No change in blind spot size
D. The blind spot size will be smaller
B. A larger area of the visual field being tested
An area within the visual field with absent vision or depressed sensitivity is ___________
A. An abrasion
B. A hordeolum
C. A pterygium
D. A scotoma
D. A Scotoma
A boundary of the visual field in which a target of given value is visible is __________
A. A meter
B. A diopter
C. An isopter
D. A centimeter
C. An isopter
Which is NOT a method used for monitoring fixation?
A. Direct visualization of the pupil through a periscope or video monitor
B. Corneal reflecltion system
C. Heijl-Krakau method
D. Dilating the eyes
D. Dilating the eyes
Amsler grid testing is normally used when which one of the following is present?
A. Visual acuity is normal
B. Visual acuity is abnormal
C. Color vision is abnormal
D. A lateral phoria is present
B. Visual acuity is abnormal
Because of its' design, an arc perimeter is ___________
A. Able to test the central visual field
B. Unable to test the peripheral visual field
C. Unable to test the central visual field
D. Able to test for vertical phorias
C. Unable to test the central visual field
When performing visual field testing, the blind spot ____________
A. Does not need to be mapped
, B. Should be mapped first
C. Is mapped at the end of the test
D. Is always on the nasal side of the visual field
B. Should be mapped first
When performing visual field testing, the room illumination __________
A. Has an effect on the results of the visual field test
B. Can be changed during the test
C. Has no effect on the results of the visual field test
D. Is not a concern of the paraoptometric
A. Has an effect on on the results of the visual field test
The fixation monitoring method that periodically presents targets in the physiological blind spot is
called ___________
A. Mosaic monitor
B. Corneal reflection system
C. Direct visualization
D. Heijl-Krakau method
D. Heijl-Krakau method
What visual field testing instrument uses 10mm size square black-on-white or white-on-black
pattern of horizontal and vertical lines forming a larger square subdivided in 20 by 20 box formation?
A. Amsler Grid
B. Tangent Screen
C. Arc Perimeter
D. Harrington Flocks Visual Filed screener
A. Amsler Grid
How long should the tear film remain uniform over the cornea after a normal blink (tear break-up
time)?
A. 5-10 seconds
B. 10-15 seconds
C. 15-20 seconds
D. 20-25 seconds
B. 10-15 seconds
Patients who show ____________ or more of corneal astigmatism as demonstrated by keratometry
are good candidates for a special posterior lens design called toric
A. 1.00 D
B. 1.50 D
C. 2.00 D
D. 2.50 D
