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. Young children can be tested using the color plates by...
having them trace the number/figure
white to white corneal diameter
3.0 D
is acceptable

2. Just prior to the beginning of the TBUT test - the patient is instructed to...
blink
10 seconds
having them trace the number/figure
the defect tends to remain stable over time

3. The type of pachymetry used to evaluate a glaucoma suspect is...
A Schirmer's test of 10 mm or more is considered normal.
a narrow angle and bowed iris cast a shadow on the iris
expensive equipment
central corneal thickness

4. Schirmer's test I is used to measure...
patient wearing spectacles
posterior subcapsular cataract
reflex tears
the cobalt blue filter

5. When using a penlight to estimate anterior chamber depth - an open angle would appear...
to have little or no shadow
infrared
red-green
with the central cornea

6. Which of the following poses problems in obtaining accurate measurements for IOL calculations?
a narrow angle and bowed iris cast a shadow on the iris
a tall - central spike with only one peak and smaller spikes on either site
red - green - and blue
patients who have had corneal refractive surgery

7. When calculating IOL power - each of the following are necessary except...
a malingerer may invent a number - thus identifying him- or herself
white to white corneal diameter
desired postoperative refraction
severe dry eye

8. Hereditary color vision defects usually affect...
red-green
Allow the patient to adjust to the light level before reading the letters.
both eyes equally
central corneal thickness

9. With the 1OLMaster - the ideal signal-to-noise ratio is...
a staining agent
2.0 or more
more males than females
2 to 3 seconds

10. Color vision testing is used to detect all of the following except...
ultrasound
suspected acquired color defect
differentiate between congenital or acquired color blindness
545 pm

11. A color plate that shows no obvious number to normal and abnormal alike is useful because...
the use of an anesthetic
normal tearing
a malingerer may invent a number - thus identifying him- or herself
reflex tears

12. The Ishihara color plates are useful...
varies according to the type of test
for screening purposes - such as job applications
differentiate between congenital or acquired color blindness
23 to 24 mm

13. Laser interferometry uses which type of laser light?
infrared
the cobalt blue filter
suspected acquired color defect
white to white corneal diameter

14. A normally functioning lacrimal gland will produce by much wetting on a Schirmer's test strip after 5 minutes?

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

15. 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
refractive surgery
pressing on the globe too hard with the probe
before starting school

16. In which of the following would glare testing be most appropriate?
posterior subcapsular cataract
10 seconds
a tall - central spike with only one peak and smaller spikes on either site
23 to 24 mm

17. This is not evaluated using rose Bengal except...
a staining agent
2.0 or more
corneal endothelial drop-out
with the central cornea

18. Acquired color vision defects...
can often be cured if the causative factor is eliminated
10 seconds
central corneal thickness
suspected acquired color defect

19. Glare testing is used to identify...
desired postoperative refraction
with the central cornea
decrease in vision due to glare conditions
narrow angles may precipitate an angle-closure glaucoma attack

20. If the patient is suspected of having an acquired color vision defect - all of the following apply except...
narrow angles may precipitate an angle-closure glaucoma attack
the defect tends to remain stable over time
the cobalt blue filter
decrease in vision due to glare conditions

21. When using color plates - a score indicates abnormal color vision...
varies according to the type of test
rods
the patient is shown a sample that is discernable to normal and abnormal alike
desired postoperative refraction

22. The IOLMaster evaluates each of the following except...
refractive error
differentiate between congenital or acquired color blindness
patients who have had corneal refractive surgery
remove the instrument from use

23. One of the keys in accurate pachymetry is...
red-green
infrared
remove the instrument from use
holding the probe perpendicular to the corneal surface

24. When performing the TBUT test - the observer is looking for...
the appearance of dry spots
central corneal thickness
545 pm
varies according to the type of test

25. A rose bengal does not require the use of...
20
545 pm
the cobalt blue filter
red-green

26. Each of the following can cause an error in the axial length scan reading of the IOL Master except...
patient wearing spectacles
the patient should be tested with near correction - if worn
to have little or no shadow
A-constant

27. A measurement error of 1 mm in an axial eye length could result in an unwanted postoperative refractive error of as much as...
reflex tears
before starting school
0.3 mm
3.0 D

28. The ideal IOLMaster axial length graph is...
infrared
a tall - central spike with only one peak and smaller spikes on either site
before starting school
the patient is shown a sample that is discernable to normal and abnormal alike

29. It is important to estimate the anterior chamber depth prior to dilation because...
the appearance of dry spots
narrow angles may precipitate an angle-closure glaucoma attack
pressing on the globe too hard with the probe
0.3 mm

30. 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)...
A-constant
patients who have had corneal refractive surgery
white to white corneal diameter
patient wearing spectacles

31. An A-Sean can he artificially shortened due to...
infrared
central corneal thickness
pressing on the globe too hard with the probe
to the left of the scleral and orbital echoes

32. 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...
that the sound beam is directed to the optic disc and the measurement is incorrect
the use of an anesthetic
narrow angles may precipitate an angle-closure glaucoma attack
23 to 24 mm

33. You are inputting data for IOL calculations and notice that the K readings 44.5/42.75. This type of reading...
with the central cornea
infrared
is acceptable
545 pm

34. The difference between Schirmer's test I and II is...
the use of an anesthetic
posterior subcapsular cataract
refractive error
shortened axial length due to compression

35. The photosensitive pigments of the eye are sensitive to...
red - green - and blue
central corneal thickness
Allow the patient to adjust to the light level before reading the letters.
20

36. When performing a brightness acuity glare test - it is best to do which of the following?
desired postoperative refraction
expensive equipment
Allow the patient to adjust to the light level before reading the letters.
normal tearing

37. Estimating the anterior chamber depth with a penlight works because...
to have little or no shadow
a narrow angle and bowed iris cast a shadow on the iris
'test eye'
shortened axial length due to compression

38. _______ are not used in evaluating tear break-up time (TBUT)
tear filter papers
normal tearing
red - green - and blue
narrow angles may precipitate an angle-closure glaucoma attack

39. Measuring time for the Schirmer's test is...
decrease in vision due to glare conditions
5 minutes
2.0 or more
posterior subcapsular cataract

40. Illumination for the color plates test...
to have little or no shadow
varies according to the type of test administered
to the left of the scleral and orbital echoes
focus can he moved off-axis to obtain a clear reading

41. If a biometry instrument fails to calibrate properly - one should...
remove the instrument from use
blink
reading disabilities
refractive surgery

42. Schirmer's test does not require _____ except Test strips
expensive equipment
having them trace the number/figure
rods
ultrasound

43. Pachymetry readings are routinely taken prior to...
10 seconds
white to white corneal diameter
refractive surgery
0.3 mm

44. When calculating intraocular lens (IOL) powers - one must enter...
central corneal thickness
desired postoperative refraction
patients who have had corneal refractive surgery
a malingerer may invent a number - thus identifying him- or herself

45. Color vision defects in children are frequently detected among those with...
reading disabilities
red - green - and blue
decrease in vision due to glare conditions
2.0 or more

46. In test a patient with the color pseudoisochromatic plates...
a tall - central spike with only one peak and smaller spikes on either site
suspected acquired color defect
more males than females
the patient should be tested with near correction - if worn

47. Hereditary color vision defects affect...
Allow the patient to adjust to the light level before reading the letters.
20
more males than females
refractive surgery

48. The axial length of the eye is important in the calculation of...
remove the instrument from use
IOL power
patient wearing spectacles
before starting school

49. The IOLMaster eliminates which of the following sources of error?
pressing on the globe too hard with the probe
for screening purposes - such as job applications
shortened axial length due to compression
expensive equipment

50. When positioning the IOLMaster for the axial length reading...
3.0 D
decrease in vision due to glare conditions
focus can he moved off-axis to obtain a clear reading
are based on the same general equation

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