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






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






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






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






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






6. 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?






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


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






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






10. Which eye structure is responsible for color vision?






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






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


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






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






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






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






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






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






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






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






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






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






23. Hereditary color vision defects affect...






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






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






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






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






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






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






30. Each of the following can cause an error in the axial length scan reading of the IOL Master except...






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






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






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






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






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






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






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






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






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






40. Rose bengal is...






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






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






43. The Ishihara color plates are useful...






44. 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?






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






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






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






48. 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)...






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






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