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






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






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






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






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






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






7. The Ishihara color plates are useful...






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






9. Hereditary color vision defects usually affect...






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






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






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






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






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






15. 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?






16. 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?






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






18. Acquired color vision defects...






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






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






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






22. 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)...






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






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






25. Rose bengal is...






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






27. Glare testing is used to identify...






28. Hereditary color vision defects affect...






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






30. _______ are not used in evaluating tear break-up time (TBUT)






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






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






33. Illumination for the color plates test...






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






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






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






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






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






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






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






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






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






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






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






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






46. Laser interferometry uses which type of laser light?






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






48. Which eye structure is responsible for color vision?






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






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