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COA Practice Test | Certified Ophthalmic Assistant Exam Questions & Study Guide

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COA Practice Test is a focused exam-preparation resource designed to help students review key concepts and assess their knowledge before taking the Certified Ophthalmic Assistant (COA) exam. Use this practice test to identify areas that need additional review, reinforce important concepts, and build confidence through targeted exam preparation. What’s included: COA practice test questions Exam-focused study material Key ophthalmic concepts for review Knowledge assessment and revision Useful preparation for the COA certification exam Convenient resource for self-study and final review Ideal for: Students preparing for the Certified Ophthalmic Assistant (COA) exam who want additional practice and focused revision material.

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COA./Practice./Test

1. Joint./Commission./on./Allied./Health./Personnel./in./Ophthalmology:./What./does./the./
abbreviation./JCAHPO./stand./for?
2. Performing./certain./diagnostic./tests:./What./responsibility./routinely./falls./to./the./ophthalmic./medical.
/assistant?


3. Ophthalmologist:./ Which./eye./care./professional./is./a./medical./doctor?
4. Optician:. / Which./eye./care./professional./routinely./fills./prescriptions./for./eyeglasses?
5. Evaluates. / double. / vision:. / What./does./an./orthoptist./do?
6. A./sub./specialist:./What./do./you./call./an./ophthalmologist./who./concentrates./on./one./area./of./the./eye?
7. Ocularist:. / Which./eye./care./professional./can./fit./a./patient./with./a./prosthetic./eye?
8. Certified./ophthalmic./technician:./What./is./the./level./directly./above./certified./ophthalmic./medica
l./assistant./on./JCAHPO's./certification./ladder?
9. Rotates./the./eye./inward./toward./the./nose:./What./is./the./primary./function./of./the./medial./recuts./
muscle?
10. (1)./Optic./nerve./(2)./Optic./chiasm./(3)./Visual./cortex:./In./this./figure./of./the./visual./st
ructures./are./correctly./identified./as./which./of./the./following?



11. Cornea:. / Which./part./of./the./eye./provides./two-thirds./of./the./focusing./power./of./the./eye?
12. Anterior. / chamber. / angle,. / through. / trabecular. / meshwork. / to. / canal.
/ of./Schlemm:./Aqueous./fluid./leaves./the./eye./in./what./sequence?


13. Palpebral. / conjunctiva:. / What./is./the./membrane./that./lines./the./inner./eyelid?
14. Eyelid:. / Which./of./the./following./is./part./of./the./ocular./adnexa?
15. Aqueous./humor:./What./is./the./term./for./the./clear,./transparent./fluid./that./fills./the./anterior./chamber?
16. Iris,. / ciliary. / body,. / choroid:. / Which./structures./are./part./of./the./uveal./tract?
17. Accommodation:./What./is./the./process./where./the./lens./changes./shape./to./allow./an./individual./to./focus./on
./a./near./target?


18. Detailed./central./vision:. / What./kind./of./vision./loss./is./associated./with./injury./or./degeneration./of./the./macula?
19. Sclera:./What./is./the./term./for./the./white./tissue./surrounding./the./cornea./and./forming./the./main./structur
al./component./of./the./globe?

, COA./Practice./Test

./ ./


./ ./ ./ ./ ./ ./




21. Change. / the. / pupil. / size. / in. / order. / to. / control. / the. / amount. / of. / light. / entering. / th
e. / eye.:./What./is./the./primary./function./of./the./iris./sphincter./and./dilator./muscles?
22. Poor./vision./in./an./eye./secondary./to./visual./deprivation./in./the./first./decade./of./li
fe:./What./is./amblyopia?
23. Double. / vision:. / What./is./diplopia?
24. Inflammation:./What./does./the./suflx./itis./mean?
25. Exophthalmos./(proptosis):. / What./is./the./condition./called./where./the./orbital./contents./swell,./pushing./th
e./eyeball./forward?
26. Eye./muscles:./What./part./of./the./eye./undergoes./surgery./for./congenital./strabismus?
27. Optic./nerve:./Primary./open-angle./glaucoma./results./in./damage./to./what./part./of./the./eye?
28. Esophoria:. / What./is./the./term./for./the./inward./deviation./of./an./eye./that./occurs./only./when./the./eye./is./covered?
29. Ischemic:. / What./is./a./tissue./or./organ./called./when./it./is./deprived./of./its./normal./blood./supply?
30. A./sign:. / What./is./the./term./for./an./abnormal./physical./change./that./a./physician./observes./while./examining./a./patient?
31. An./opacification./of./the./crystalline./lens:./What./is./a./cataract?
32. A. / lump. / that. / develops. / after. / inflammation. / and. / infection. / of. / the. / meibo
mian./glands:./What./is./a./chalazion?
33. Metabolic:./ Diabetes./mellitus./is./what./type./of./disease./process?
34. Retinal./detachment:./What./condition./has./symptoms./that./include./flashes./of./light./in./the./corner./of./the./eye
,./followed./by./a./sensation./of./a./curtain./moving./across./the./vision?
35. Keratoconjunctivitis. / sicca:. / What./is./another./name./for./dry./eye?
36. -Infection./of./the./retina./can./be./caused./by./the./cytomegalovirus./(CMV)
-
Opportunistic. / infections. / of. / the. / retina. / are. / more. / likely. / when. / he. / CD4. / count. / is./
less./than./50
-Antiretroviral./drugs./can./help./a./person./with./HIV./live./symptom-
free:./What./applies./to./acquired./immunodeficiency./syndrome./(AIDS)?
37. Hypertension:./The./retina./examination./is./often./important./in./detecting./what./disease?
38. Type. / 2:. / What./type./of./herpes./simplex./virus./usually./produces./genital./infections?
39. Rheumatoid./ arthritis:./ Dry./eyes./are./common./in./which./of./the./following./diseases?

, COA./Practice./Test

40. Metastatic:./What./is./a./cancer./that./spreads./to./other./parts./of./the./body./called?
41. Nervous:./The./eyes./are./considered./part./of./which./body./system?
42. Myasthenia./gravis:./Which./of./the./following./diseases./is./a./chronic./autoimmune./conditions./that./interfer
es./with./proper./nerve./transmission./in./the./skeletal./muscles?
43. Carbon. / dioxide:. / What./is./a./waste./product./of./metabolism?
44. Optic. / neuritis:. / What./is./a./common./eye./disorder./associated./with./multiple./sclerosis?
45. Thyroid. / eye. / disease:. / What./is./the./most./common./cause./of./exophthalmos./in./an./adult?
46. 25:./The./occurrence./of./blindness./among./people./with./diabetes./mellitus./is./
times./that./of./the./general./population.
47../+3.00./-2.00./X./180:./What./is./the./correct./transposition./of./the./plus-
cylinder./prescription./+1.00./+2.00./X./90./to./its./minus-cylinder?
48. Myopic:. / The./figure./shows./the./focal./point./of./light./rays./in./an./eye./that./is./what?


49. Light-divergent./property./of./a./concave./lens:./This./figure./illustrates./what./p




50. Add:./What./is./the./ditterence./between./the./power./of./the./upper./segment./and./the./power./of./the./lower./segmen
t./in./a./bifocal./lens./called?
51. Finding. / the. / lens. / power. / that. / affects. / movement. / of. / the. / retinal. / reflex. / and. / fill
s./the./pupil./with./light:./What./is./the./process./of./neutralization./during./retinoscopy?
52. Astigmatism:. / What./is./a./toric./cornea./characteristic./of?
53. Prism:./If./the./lensmeter./mires./cannot./be./centered./in./the./central./portion./of./the./lensmeter./target,./the./le
ns./probably./contains./what?
54../+3.00:./The./distance./portion./of./an./eyeglass./lens./is./+2.00./D./and./the./bifocal./add./is./+1.00../What./is./the./power
./of./the./lens./through./the./bifocal./segment?


55. Transparent:. / What./is./a./substance./called./that./permits./the./passage./of./light./without./significant./disruption?
56. Spherocylindrical./lens:./What./type./of./lens./best./corrects./myopia./combined./with./astigmatism?
57. Focus. / the. / eyepiece:. / What./is./the./first./step./in./performing./manual./lensometry./or./keratometry?
58. 2.00./D:./What./is./the./power./in./diopters./of./a./convex./lens./with./a./focal./length./of./0.50./meter?

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