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






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






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






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






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






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






7. Glare testing is used to identify...






8. Which eye structure is responsible for color vision?






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






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






11. Acquired color vision defects...






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






27. 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?






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






29. 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)...






30. Hereditary color vision defects usually affect...






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






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






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






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






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






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






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






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






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






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






41. Illumination for the color plates test...






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






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






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






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






46. The Ishihara color plates are useful...






47. Rose bengal is...






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






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






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