Test your basic knowledge |

Certified Ophthalmic Assistant

Subjects : certifications, health-sciences

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Schirmer's test II is used to measure...
suspected acquired color defect
focus can he moved off-axis to obtain a clear reading
normal tearing
white to white corneal diameter

2. Which eye structure is responsible for color vision?
rods
5 minutes
differentiate between congenital or acquired color blindness
varies according to the type of test administered

3. Each of the following can cause an error in the axial length scan reading of the IOL Master except...
Allow the patient to adjust to the light level before reading the letters.
red - green - and blue
patient wearing spectacles
decrease in vision due to glare conditions

4. You are inputting data for IOL calculations and notice that the K readings 44.5/42.75. This type of reading...
white to white corneal diameter
is acceptable
tear filter papers
decrease in vision due to glare conditions

5. Illumination for the color plates test...
varies according to the type of test administered
refractive error
the patient is shown a sample that is discernable to normal and abnormal alike
decrease in vision due to glare conditions

6. Just prior to the beginning of the TBUT test - the patient is instructed to...
the defect tends to remain stable over time
the cobalt blue filter
blink
2 to 3 seconds

7. When using a penlight to estimate the depth of the anterior chamber - the following technique is best...
shine the light flatly from the side - in the plane of the iris
dacryocystitis
a tall - central spike with only one peak and smaller spikes on either site
with the central cornea

8. When using color plates - a score indicates abnormal color vision...
red-green
A Schirmer's test of 10 mm or more is considered normal.
varies according to the type of test
blink

9. With the 1OLMaster - the ideal signal-to-noise ratio is...
2.0 or more
varies according to the type of test administered
blink
differentiate between congenital or acquired color blindness

10. One of the keys in accurate pachymetry is...
a staining agent
normal tearing
holding the probe perpendicular to the corneal surface
a malingerer may invent a number - thus identifying him- or herself

11. In test a patient with the color pseudoisochromatic plates...
the patient should be tested with near correction - if worn
both eyes equally
are based on the same general equation
5 minutes

12. The Schirmer's test might be indicated in all of the following except...
dacryocystitis
Allow the patient to adjust to the light level before reading the letters.
refractive error
more males than females

13. A patient with which of the following potential diagnoses would be tested with bengal?
a malingerer may invent a number - thus identifying him- or herself
'test eye'
blink
severe dry eye

14. The axial length of the eye is important in the calculation of...
shortened axial length due to compression
IOL power
patients who have had corneal refractive surgery
focus can he moved off-axis to obtain a clear reading

15. Measuring time for the Schirmer's test is...
5 minutes
shine the light flatly from the side - in the plane of the iris
can often be cured if the causative factor is eliminated
narrow angles may precipitate an angle-closure glaucoma attack

16. Schirmer's test I is used to measure...
545 pm
to the left of the scleral and orbital echoes
reflex tears
desired postoperative refraction

17. Hereditary color vision defects affect...
one-fourth
remove the instrument from use
more males than females
for screening purposes - such as job applications

18. It is important to estimate the anterior chamber depth prior to dilation because...
pressing on the globe too hard with the probe
that the sound beam is directed to the optic disc and the measurement is incorrect
the appearance of dry spots
narrow angles may precipitate an angle-closure glaucoma attack

19. Schirmer's test does not require _____ except Test strips
the defect tends to remain stable over time
expensive equipment
before starting school
that the sound beam is directed to the optic disc and the measurement is incorrect

20. In slit-lamp assessment of the corneal periphery - the dark interval should be a minimum of approximately how much of the total corneal width for the angle to he considered open and safe for dilation?
one-fourth
central corneal thickness
patients who have had corneal refractive surgery
the appearance of dry spots

21. The Ishihara color plates are useful...
a narrow angle and bowed iris cast a shadow on the iris
for screening purposes - such as job applications
having them trace the number/figure
narrow beam

22. Color vision defects in children are frequently detected among those with...
having them trace the number/figure
more males than females
545 pm
reading disabilities

23. A color plate that shows no obvious number to normal and abnormal alike is useful because...
dacryocystitis
the patient should be tested with near correction - if worn
a malingerer may invent a number - thus identifying him- or herself
patient wearing spectacles

24. Measuring corneal thickness via nonoptical pachymetry involves the use of...
a narrow angle and bowed iris cast a shadow on the iris
ultrasound
normal tearing
10 seconds

25. When performing pachymetry prior to refractive surgery - it is generally best to begin...
a malingerer may invent a number - thus identifying him- or herself
with the central cornea
infrared
IOL power

26. The type of pachymetry used to evaluate a glaucoma suspect is...
5 minutes
narrow beam
pressing on the globe too hard with the probe
central corneal thickness

27. When performing a brightness acuity glare test - it is best to do which of the following?
Allow the patient to adjust to the light level before reading the letters.
a narrow angle and bowed iris cast a shadow on the iris
0.3 mm
focus can he moved off-axis to obtain a clear reading

28. When comparing the axial lengths of a patient's left and right eye - how much of a difference between the eyes should signal you to repeat the measurement of both eyes?
having them trace the number/figure
a staining agent
before starting school
0.3 mm

29. Color vision testing is used to detect all of the following except...
with the central cornea
differentiate between congenital or acquired color blindness
a staining agent
the appearance of dry spots

30. Acquired color vision defects...
blink
can often be cured if the causative factor is eliminated
expensive equipment
545 pm

31. Hereditary color defects most often fall into which category?
red-green
blink
the cobalt blue filter
3.0 D

32. A measurement error of 1 mm in an axial eye length could result in an unwanted postoperative refractive error of as much as...
3.0 D
'test eye'
23 to 24 mm
can often be cured if the causative factor is eliminated

33. The IOLMaster must be calibrated daily using a...

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

34. When calculating IOL power - each of the following are necessary except...
white to white corneal diameter
focus can he moved off-axis to obtain a clear reading
to have little or no shadow
3.0 D

35. Pachymetry readings are routinely taken prior to...
posterior subcapsular cataract
holding the probe perpendicular to the corneal surface
refractive surgery
reflex tears

36. A TBUT of which of the following would indicate tear film dysfunction?
central corneal thickness
can often be cured if the causative factor is eliminated
the patient should be tested with near correction - if worn
10 seconds

37. The manufacturer of a given IOL often supplies a specific number that must be entered into the IOL calculations when the lens is to be used. This number is refer to as a(n)...
reflex tears
A-constant
a narrow angle and bowed iris cast a shadow on the iris
remove the instrument from use

38. If the patient is suspected of having an acquired color vision defect - all of the following apply except...
the defect tends to remain stable over time
varies according to the type of test
more males than females
a staining agent

39. Which of the following should be color-vision tested one eye at a time?
differentiate between congenital or acquired color blindness
suspected acquired color defect
for screening purposes - such as job applications
dacryocystitis

40. When should a child have his or her color vision checked?
before starting school
focus can he moved off-axis to obtain a clear reading
patients who have had corneal refractive surgery
23 to 24 mm

41. The ideal IOLMaster axial length graph is...
a tall - central spike with only one peak and smaller spikes on either site
white to white corneal diameter
A-constant
focus can he moved off-axis to obtain a clear reading

42. When evaluating anterior chamber depth with the slit lump - the illumination technique used is...
545 pm
narrow beam
the cobalt blue filter
2 to 3 seconds

43. Young children can be tested using the color plates by...
having them trace the number/figure
A Schirmer's test of 10 mm or more is considered normal.
shortened axial length due to compression
the defect tends to remain stable over time

44. This is not evaluated using rose Bengal except...
corneal endothelial drop-out
dacryocystitis
a malingerer may invent a number - thus identifying him- or herself
a tall - central spike with only one peak and smaller spikes on either site

45. In evaluating an axial length scan - the retinal echo must be...
having them trace the number/figure
suspected acquired color defect
to the left of the scleral and orbital echoes
20

46. The IOLMaster eliminates which of the following sources of error?
are based on the same general equation
shortened axial length due to compression
the patient is shown a sample that is discernable to normal and abnormal alike
'test eye'

47. The photosensitive pigments of the eye are sensitive to...
refractive error
red-green
red - green - and blue
narrow beam

48. Before proceeding with the actual color plate test...
the patient is shown a sample that is discernable to normal and abnormal alike
IOL power
the defect tends to remain stable over time
is acceptable

49. In an axial length A-scan - if there is only one tall echo from the back of the eye with no other echoes behind it - this indicates...
23 to 24 mm
that the sound beam is directed to the optic disc and the measurement is incorrect
the use of an anesthetic
A Schirmer's test of 10 mm or more is considered normal.

50. Estimating the anterior chamber depth with a penlight works because...
white to white corneal diameter
pressing on the globe too hard with the probe
decrease in vision due to glare conditions
a narrow angle and bowed iris cast a shadow on the iris

Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?

Major Subjects
Tests & Exams AP CLEP DSST GRE SAT GMAT	Certifications CISSP go to https://www.isc2.org/ PMP ITIL RHCE MCTS More...	IT Skills Android Programming Data Modeling Objective C Programming Basic Python Programming Adobe Illustrator More...	Business Skills Advertising Techniques Business Accounting Basics Business Strategy Human Resource Management Marketing Basics More...
Soft Skills Body Language People Skills Public Speaking Persuasion Job Hunting And Resumes More...	Vocabulary GRE Vocab SAT Vocab TOEFL Essential Vocab Basic English Words For All Global Words You Should Know Business English More...	Languages AP German Vocab AP Latin Vocab SAT Subject Test: French Italian Survival Norwegian Survival More...	Engineering Audio Engineering Computer Science Engineering Aerospace Engineering Chemical Engineering Structural Engineering More...
Health Sciences Basic Nursing Skills Health Science Language Fundamentals Veterinary Technology Medical Language Cardiology Clinical Surgery More...	English Grammar Fundamentals Literary And Rhetorical Vocab Elements Of Style Vocab Introduction To English Major Complete Advanced Sentences Literature Homonyms More...	Math Algebra Formulas Basic Arithmetic: Measurements Metric Conversions Geometric Properties Important Math Facts Number Sense Vocab Business Math More...	Other Major Subjects Science Economics History Law Performing-arts Cooking Logic & Reasoning Trivia

Test your basic knowledge |

Certified Ophthalmic Assistant

Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?

Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests

Major Subjects

Tests & Exams

Certifications

IT Skills

Business Skills

Soft Skills

Vocabulary

Languages

Engineering

Health Sciences

English

Math

Other Major Subjects

Browse all subjects

Browse all tests

Most popular tests