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 which of the following would glare testing be most appropriate?






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






3. 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?






4. Rose bengal is...






5. Acquired color vision defects...






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






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






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






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






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






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






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

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






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






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






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






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






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






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






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






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






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






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






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






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






26. Hereditary color vision defects usually affect...






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






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






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






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






31. 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)...






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






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






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






35. Glare testing is used to identify...






36. Hereditary color vision defects affect...






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






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






39. Laser interferometry uses which type of laser light?






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

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






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






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






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






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






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






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






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






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






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







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