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






2. Hereditary color vision defects affect...






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






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






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






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






7. It is important to estimate the anterior chamber depth prior to dilation because...






8. 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)...






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






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






11. 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?






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






13. Which of the following should be color-vision tested one eye at a time?






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






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






16. One of the keys in accurate pachymetry is...






17. A patient with which of the following potential diagnoses would be tested with bengal?






18. Glare testing is used to identify...






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






20. Hereditary color vision defects usually affect...






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






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






23. Which of the following poses problems in obtaining accurate measurements for IOL calculations?






24. A rose bengal does not require the use of...






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






26. Rose bengal is...






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






28. Color vision defects in children are frequently detected among those with...






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






30. When calculating intraocular lens (IOL) powers - one must enter...






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






32. When performing pachymetry prior to refractive surgery - it is generally best to begin...






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






34. In test a patient with the color pseudoisochromatic plates...






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






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






37. Laser interferometry uses which type of laser light?






38. An A-Sean can he artificially shortened due to...






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






40. Pachymetry readings are routinely taken prior to...






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






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






43. If a biometry instrument fails to calibrate properly - one should...






44. Which eye structure is responsible for color vision?






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






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






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






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






49. When using a penlight to estimate anterior chamber depth - an open angle would appear...






50. The type of pachymetry used to evaluate a glaucoma suspect is...