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






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






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






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






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






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






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






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






9. Glare testing is used to identify...






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






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






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






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






14. Acquired color vision defects...






15. Which eye structure is responsible for color vision?






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






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






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






19. Rose bengal is...






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






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






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






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






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






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






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






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






28. 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?






29. The Ishihara color plates are useful...






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






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






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






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






34. Illumination for the color plates test...






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

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






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






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






39. Hereditary color vision defects affect...






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






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






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






43. Hereditary color vision defects usually affect...






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






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






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






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






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






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






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