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. Laser interferometry uses which type of laser light?






2. 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)...






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






4. Rose bengal is...






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






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






7. Acquired color vision defects...






8. Which eye structure is responsible for color vision?






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






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






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






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






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






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






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






16. The Ishihara color plates are useful...






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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


18. 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?






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






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






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






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






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






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






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






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






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






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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






47. 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?






48. Illumination for the color plates test...






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






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