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Certified Ophthalmic Assistant
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A Certified Ophthalmic Assistant (COA) is an entry-level ophthalmology professional. The Ophthalmic Assistant generates important preliminary information to be used by the ophthalmologist; reviews patient status and performs medical tests.
The COA certification exam covers 22 specific content areas, is three hours long, and includes nearly 200 multiple-choice questions.
There are three levels of certification: COA (Certified Ophthalmic Assistant), COT (Certified Ophthalmic Technician), and COMT (Certified Ophthalmic Technologist).
Certified Ophthalmic Assistant
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25 Questions

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

2. Hereditary color vision defects affect...

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

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

5. Illumination for the color plates test...

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

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

8. Rose bengal is...

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

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

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

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

13. Laser interferometry uses which type of laser light?

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

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

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

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

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

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

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

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

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

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

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

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