Test your basic knowledge |

Certified Ophthalmic Assistant

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. 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)...






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

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3. Measuring time for the Schirmer's test is...






4. Schirmer's test II is used to measure...






5. Before proceeding with the actual color plate test...






6. How long should the patient be given to recognize the figure in a color plate?






7. The IOLMaster eliminates which of the following sources of error?






8. Schirmer's test does not require _____ except Test strips






9. When positioning the IOLMaster for the axial length reading...






10. Schirmer's test I is used to measure...






11. Young children can be tested using the color plates by...






12. 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...






13. The Schirmer's test might be indicated in all of the following except...






14. The axial length of an average adult eye is...






15. With the 1OLMaster - the ideal signal-to-noise ratio is...






16. Hereditary color vision defects usually affect...






17. Hereditary color defects most often fall into which category?






18. Just prior to the beginning of the TBUT test - the patient is instructed to...






19. The photosensitive pigments of the eye are sensitive to...






20. You are inputting data for IOL calculations and notice that the K readings 44.5/42.75. This type of reading...






21. Measuring corneal thickness via nonoptical pachymetry involves the use of...






22. Color vision testing is used to detect all of the following except...






23. Estimating the anterior chamber depth with a penlight works because...






24. A TBUT of which of the following would indicate tear film dysfunction?






25. The IOLMaster evaluates each of the following except...






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

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27. The axial length of the eye is important in the calculation of...






28. Which eye structure is responsible for color vision?






29. When should a child have his or her color vision checked?






30. When using a penlight to estimate the depth of the anterior chamber - the following technique is best...






31. If the patient is suspected of having an acquired color vision defect - all of the following apply except...






32. The average central thickness of the human cornea is...






33. When performing the TBUT test - the observer is looking for...






34. A measurement error of 1 mm in an axial eye length could result in an unwanted postoperative refractive error of as much as...






35. A color plate that shows no obvious number to normal and abnormal alike is useful because...






36. In evaluating an axial length scan - the retinal echo must be...






37. Laser interferometry uses which type of laser light?






38. When calculating IOL power - each of the following are necessary except...






39. 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?






40. The difference between Schirmer's test I and II is...






41. When using color plates - a score indicates abnormal color vision...






42. The ideal IOLMaster axial length graph is...






43. In which of the following would glare testing be most appropriate?






44. When evaluating anterior chamber depth with the slit lump - the illumination technique used is...






45. Rose bengal is...






46. Acquired color vision defects...






47. For safety reasons - the limit for the number of readings that may he taken per eye per day with the 101.Master is...






48. When performing a brightness acuity glare test - it is best to do which of the following?






49. This is not evaluated using rose Bengal except...






50. Illumination for the color plates test...