Download Chapter 9: Specialty Testing

Chapter 9: Specialty Testing
1.
__________ is the measurement of the corneal curvature. (p162) *
a. tonometry
b. corneal topography
c. keratometry
d. pachymetry
2. The instruments used to measure corneal curvature are called keratometers or __________. (p162)
a. HRT II
b. ophthalmometers
c. OCT
d. corneal topographer
3.
When using a keratometer the paraoptometric should align the lamphouse pin with the patient’s
__________. (p163)
a. pupil
b. lower limbus
c. lower eyelid
d. canthus
4. Tonometry is the measurement of __________. (p165)
a. the pupil
b. cataracts
c. IOP
d. corneal thickness
5. The increase in intraocular pressure and damage of the visual field is known as __________. (p165)
a. macular degeneration
b. glaucoma
c. diabetic retinopathy
d. cataracts
6. There are two main types of tonometers, __________ and __________. (p165)
a. indentation; applanation
b. applanation; NCT
c. NCT; Goldmann
d. alternative; indentation
7. Corneal topography is a method of analyzing the __________ of the cornea. (p171)
a. steepness
b. roundness
c. size
d. curves
8. __________ uses advanced photonic and fiber optics to obtain high-resolution imaging. (p172)
a. Ultrasonography
b. Heidelberg Retina Tomography
c. Optical Coherence Tomography
d. GDx Nerve Fiber Analyzer
9. While looking at the patient’s eye in the keratometer, adjust the instrument until the __________ circle
is reflected off the cornea and the glow of the instrument lamp is centered on the patient’s eye. (p???)
a. white
b. green
c. larger
d. small
10. __________ is constantly being produced in the ciliary body and flows between the lens and posterior
iris, the pupil, past the front of the iris, and out of the eye via the canal of Schlemm. (p165)
a. vitreous humor
b. aqueous humor
c. blood
d. ????
11. Applanation tonometry is performed most commonly with __________ tonometer. (p166)
a. tono-pen
b. indentation
c. Golmann
d. contact
12. The process of using the reflection or echo of high frequency sound waves to determine the outlines of
ocular and orbital structures is called __________. (p167)
a. Goldmann
b. HRT II
c. Ophthalmic Ultrasonography
d. Pachymetry
13. A __________ is a device that determines the thickness of the cornea in any given location. (p171)
a. Goldmann
b. Corneal Topographer
c. Tonographer
d. Pachymeter
14. __________ is the method of analyzing the curves of the cornea. (p???)
a. keratometry
b. corneal topography
c. pachymetry
d. tonometry
15. When using a manual keratometer the plus and minus signs will not focus if the patient has __________
(p???)
e. hyperopia
f. corneal astigmatism
g. keratoconus
h. myopia
16. When a patient has reduced visual acuity caused by a cataract, __________ will assist the doctor in
determining the patient’s potential visual acuity without the cataract. (p???)
a. fundus photography
b. HRT II
c. potential acuity meter
d. contrast sensitivity
17. Which method is most likely performed when evaluating corneal warpage? (p???)
a. corneal topography
b. pachymetry
c. keratometry
d. ophthalmic ultrasonography
18. The keratometer measures an approximate _____-mm area of the central cornea. (p???)
a. 3
b. 4
c. 5
d. 6
19. The eyepiece of the Keratometer should not be moved back and forth when focusing the cross, as this
will: (p???)
a. Blur the cross
b. Affect the calibration of the instrument
c. Stimulate the accommodative system, resulting in an incorrect setting
d. Make the patient dizzy
20. If the horizontal bars of the plus signs are not aligned, you must? (p???)
a. Turn the horizontal measuring drum
b. Rotate the axis grip
c. Refocus the black cross
d. Turn the vertical measuring drum
21. When recording the keratometry reading, the horizontal power reading is taken from the _____. (p???)
a. Left side
b. Right side
c. The drum
d. Horizontal power drum
22. When recording the keratometry reading, the vertical power reading is taken from the ____. (p???)
a. Left side
b. Right side
c. The drum
d. Vertical power drum
23. A person with glaucoma will have ____. (p???)
a. High pressure reading
b. Low to normal pressure reading
c. No pressure reading
d. Fast pressure reading
24. Which best describes the mire position when cornea is properly centered and applanated? (p???)
a. The Semicircles touch, forming a horizontal “S”
b. The outer edges of the semicircles touch
c. The inner edges of the semicircles touch
d. The semicircles do not touch
25. Which of the following tonometers have the advantage of being portable, fast and comfortable to hold?
(p???)
a. Noncontact
b. Schiotz
c. Goldmann
d. Tono-Pen
26. The instrument used to test visual acuity under different lighting conditions is called: (p???)
a. Brightness Acuity Tester
b. Potential Acuity Tester
c. Glare Acuity Tester
d. Photophobia
27. The potential acuity meter is used to determine the potential acuity of a patient who has (p???)
a. Glaucoma
b. Macular degeneration
c. Cataracts
d. Diabetics retinopathy
28. The type of ultrasonography used to determine the length of the eyeball is ____ (p???)
a. A-Scan
b. B-Scan
c. C-Scan
d. D-Scan
29. The type of ulrasonography used to detect tumors in the eye is the ____ (p???)
a. A-Scan
b. B-Scan
c. C-Scan
d. D-Scan
30. Corneal topography measurements should be performed: (p???)
a. When a cataract is suspected
b. When glaucoma is suspected
c. Prior to a refractive procedure, such as LASIK
d. Prior to retinal surgery
31. A pachymeter is used to: (p???)
a. Measure the retinal nerve fiber layer
b. Diagnose glaucoma
c. Analyze the optic disk
d. Measure corneal thickness
32. In order for a GDx or HRT to be performed, the patient must have _____ (p???)
a. LASIK
b. Dilating eyedrops instilled
c. Anesthetic eyedrops instilled
d. Antibacterial ointment
33. What instrument is a electronic hand held tonometer (p???)
a. NCT
b. Pneumatonometer
c. Tono-pen
d. Palometer
34. What is used to clean the tip of the tono-pen? (p???)
a. Alcohol
b. Bleach
c. Water
d. Compressed air
35. How many readings does the Tono-pen analyze to produce a reading? (p???)
a. 4
b. 3
c. 2
d. 5
36. When using the tono pen to obtain a IOP reading you must (p???)
a. Applanate the cornea
b. Indent the cornea
c. Not touch the cornea
d. None of the above
37. Glare may produce the following (p???)
a. Pain
b. Photophobia and reduce quality of vision
c. A need for spectacles
d. Red eyes
38. Glare testing reveals the following (p???)
a. A pt. has no difference with or without glare testing using a sneille chart
b. When exposed to daylight they will be unable to see clearly
c. If they have glaucoma
d. If they have macular degeneration
39. Which device is used to test for Glare (p???)
a. Brightness Acuity tester
b. NCT
c. FDT
d. OCT
40. The contrast of dark and light between an object and it surrounds is referred to as (p???)
a. Photophobia
b. Dark adaption
c. Contrast sensitivity
d. Retinal pigment sis
41. Contrast sensitivity can help determine a need for (p???)
a. Sunglasses
b. If surgery is needed for a medical condition
c. Visual field testing
d. Vitamins
42. Contrast sensitivity testing is done by (p???)
a. Using a snellen chart
b. Using a chart with letters or symbols varing amounts of faint gray print
c. Taking a fundus photo
d. Asking the pt. if glare is a problem
43. The potential acuity meter measures (p???)
a. The cornea
b. Amount of glare a pt sees
c. The pt’s potential vision without a cataract
d. The amount of macular degeneration
44. An interferometer is used to (p???)
a. Measure IOP
b. Test glare
c. Measure the cornea
d. Test potential acuity
45. What degree of fundus photo is wide angle (p???)
a. 60
b. 40
c. 80
d. 70
46. Fundus photography refers to color photos take to the (p???)
a. cornea
b. posterior portion of the eye
c. anterior portion of the eye
d. human lens
47. Corneal thickness is measured with what method? (p???) *
a. Tonometry
b. Pachymetry
c. Keratometry
d. Fundus photography
48. In fundus photography the camera is centered on what? (p???)
a. optic disk
b. optic nerve
c. pupil
d. macula
49. Virtual Point technology provides what? (p???)
a. Patients pressure
b. Retinal imaging
c. Corneal mapping
d. Corneal curvature