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. Laser interferometry uses which type of laser light?






2. Which eye structure is responsible for color vision?






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






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






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






6. 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...






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






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






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






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






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






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






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






14. Hereditary color vision defects affect...






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






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






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






18. 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?






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






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






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






22. Rose bengal is...






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






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






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






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






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






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






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






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






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






32. The Ishihara color plates are useful...






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






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






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






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






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






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






39. Almost all of the formulas for calculating IOL power...






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






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






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






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






44. Hereditary color vision defects usually affect...






45. Illumination for the color plates test...






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






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






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






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






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