2024 Edition

Contact Lens Practice Test

Take this free practice test to see how prepared you are for an Contact Lens Registry Exam, taken by opticians. 

Ocular Anatomy, Physiology, and Pathology

1. Which anatomical part of the eye can have up to 33 diopters of optical power?
2. A common finding in macular degeneration is:
3. What is the name of a common noncancerous growth on the conjunctiva?
4. Which eye structure can change shape (accommodate) allowing an image to be focused on the back of the eye?
5. Irregular astigmatism (keratoconus) is caused by which part of the eye?
6. On which part of the eye do styes (chalazia) usually develop?
7. ______ is inflammation of the upper tarsal conjunctiva resulting in large papillae and is associated with contact lens wear.

Refractive Errors

8. A ________ eye focuses light ____ the retina.
9. Which term describes the property of a lens that is thickest in the middle?

Instrumentation for Measurement and Observation

10. All of the following can be used in establishing a patient's contact lens prescription except:
11. Two sets of lines, typically green in color, that must be focused and orientated correctly to determine the cylinder power of a lens is known as (a):
12. A device commonly used to screen for keratoconus is a(n):
13. A device that holds many lenses and assists in determining refractive error is referred to as a:
14. An instrument that is commonly used to determine the refractive error of an eye is called a(n):
15. Which test can be used to measure if a patient's dry eye symptoms are too severe for contact lens wear?
16. If a patient has a glasses prescription of -3.00 -2.00 x 130 and corneal measurements of 45.00/43.00 x 130, which type of astigmatism is present?


17. After transposing the following glasses prescription, what is the next step in determining this contact lens prescription?
OD +3.50 +2.50 x 075
18. What are scleral contact lenses commonly used for?
19. During fitting of contact lenses, corneal curvature measurements are used to determine which contact lens parameter?
20. To convert a plus cylinder form spectacle prescription to a contact lens prescription, the axis needs to be changed by:
21. Which of the following base curves will fit the eye best if the patient has a corneal measurement of 41.00/41.25 x 90?
22. Which eye condition would benefit the most from a hybrid contact lens?
23. A contact lens that contains an additional plus power in certain zones to assist presbyopic patients is also called a:

Diagnostic Fitting

24. What factors should be considered when selecting a lens for a patient?
25. Which one of the following statements is true about insertion and removal of soft contact lenses?
26. Which of the following is not a characteristic of an optimal RGP lens fit?
27. While fitting a patient with a toric soft lens in the prescription below, it is observed the lens is over-rotated by 10 degrees to the left. How should the prescription be adjusted?
28. A patient returns for a toric contact lens fitting follow-up and complains of temporary blurriness after blinking. The patient states this is a concern since their job performance relies heavily on their vision. How can this be resolved?


29. If a contact lens is monthly wear, which one of the following statements is true?
30. Which type of soft contact lens does not require daily disinfecting, as long as contact lenses are removed from eyes each day?
31. Which type of eye related solution is not safe to go directly in the eyes?
32. All of the following instructions should be given to new weekly and monthly disposable contact lens wearers, except:
33. Which of the following would be least harmful to the eyes?
34. When dispensing a contact lens, what steps are recommended to verify the contact lens is correct for the patient?
35. All of the following needs to be included in the contact lens prescription, according to the Contact Lens Rule, except:
36. For a new fit, which type of contact lens requires the longest period for building up wear time?
37. Which type of contact lens solution requires a process of 6 to 8 hours for the lenses to be safe for wear?
38. Which one of the following statements is true?
39. Which of the following does not increase a patient's risk of eye infection?
40. This should not be used to clean soft contact lenses:


41. Which of the following would be considered a subjective follow-up finding?
42. Which of the following would be considered an objective follow-up finding?
43. What is typically not included in the contact lens follow-up?
44. If the eye becomes red during contact lens wear, the patient should be advised to do the following except:
45. A contact lens follow up visit should include which of the following verifications?
46. During a contact lens follow up, the patient's vision is blurry with a soft toric contact lens. Which of the following would not be helpful in determining the cause of the blurry vision?
47. Patients should be instructed to remove contact lenses from their eyes and call an eye doctor when:
48. The following are all part of proper follow up care for soft contact lenses except:
49. Signs that a contact lens is fitting too tightly on a follow up visit include which of the following?
50. A patient comes in for contact lens follow up visit with a red, painful eye with a white spot on the cornea. A possible diagnosis would be:
51. After the contact lens prescription is finalized, when should the patient contact the prescriber?

Regulatory and Administrative

52. Under FDA regulations:
53. All of the following are exemptions to a prescriber being legally obligated to provide a copy of a patient's contact lenses prescription at the end of evaluation except:
54. Under HIPAA, which of the following scenarios is prohibited:
55. The Fairness to Contact Lens Consumers Act states that it is ________ for a patient to purchase contact lenses from a seller other than the prescriber if the contact lens prescription is ____________.