Certified Ophthalmic Assistant (COA)
Study Guide – JCAHPO Exam (80% to
pass!) QUESTIONS AND ANSWERS
LATEST UPDATE 2025/2026 ALL
ANSWERS CORRECT VERIFIED BEST
GRADED TO SCORE A+ FOR SUCCESS
What is a yellow top on eye drops for?
A. Carbonic anhydrase inhibitors
B. Prostaglandin analogues
C. Beta-blockers
D. Cycloplegics - ✔✔ANSWER ✔✔-C. Beta-blockers
Rationale:* Can also be light blue!
,* Used to treat glaucoma; it helps to decrease the
production of aqueous humor and reduce IOP
* Examples:
- Timolol
- Levobunolol
- Betaxolol (light blue top)
When reading add power on the lensometer take the
difference between the triple line target distance reading
and the _____.
A. Single line distance reading
B. Triple line bifocal reading
C. Single line bifocal reading
D. Zero point - ✔✔ANSWER ✔✔-B. Triple line bifocal
reading
The purpose of keratometry is to measure: - ✔✔ANSWER
✔✔-The curvature of the anterior corneal surface
,An eye alignment deviation that is not present unless
fusion is disrupted is called a:
A. Phoria
B. Tropia
C. Hyper deviation
D. Eso deviation - ✔✔ANSWER ✔✔-A. Phoria
Rationale: * Tropia and Phorias are terms to describe
when the eyes are not in alignment with each other
* A tropia is always present, while phorias are there
"some of the time," such as when the patient is tired or
when fusion is broken (you cover an eye and it starts to
drift).
The endpoint of the Maddox Rod test occurs when:
A. The red dot is superimposed on the light
B. The red line goes through the light
C. The red line disappears
D. The red line is above the light - ✔✔ANSWER ✔✔-B.
The red line goes through the light
, A condition in which blood has settled in the bottom half
of the anterior chamber of the eye is called a:
A. Subconjunctival hemorrhage
B. Pink eye
C. Hyphema
D. Glaucoma - ✔✔ANSWER ✔✔-C. Hyphema
Rationale: * A subconjunctival hemorrhage will only
involve the white of the eye, not the center, and will
typically have no pain associated with it
* A hyphema will only affect the center of the eye,
behind the cornea, and will usually have pain and
additional symptoms associated with it
An outward deviation of the eye(s) is a(n) ____ and an
inward deviation of the eye(s) is called a(n) ______.
A. Esodeviation / Exodeviation
B. Esophoria / Exophoria
C. Exodeviation / Esodeviation
D. Exophoria / Esophoria - ✔✔ANSWER ✔✔-C.
Exodeviation / Esodeviation
Study Guide – JCAHPO Exam (80% to
pass!) QUESTIONS AND ANSWERS
LATEST UPDATE 2025/2026 ALL
ANSWERS CORRECT VERIFIED BEST
GRADED TO SCORE A+ FOR SUCCESS
What is a yellow top on eye drops for?
A. Carbonic anhydrase inhibitors
B. Prostaglandin analogues
C. Beta-blockers
D. Cycloplegics - ✔✔ANSWER ✔✔-C. Beta-blockers
Rationale:* Can also be light blue!
,* Used to treat glaucoma; it helps to decrease the
production of aqueous humor and reduce IOP
* Examples:
- Timolol
- Levobunolol
- Betaxolol (light blue top)
When reading add power on the lensometer take the
difference between the triple line target distance reading
and the _____.
A. Single line distance reading
B. Triple line bifocal reading
C. Single line bifocal reading
D. Zero point - ✔✔ANSWER ✔✔-B. Triple line bifocal
reading
The purpose of keratometry is to measure: - ✔✔ANSWER
✔✔-The curvature of the anterior corneal surface
,An eye alignment deviation that is not present unless
fusion is disrupted is called a:
A. Phoria
B. Tropia
C. Hyper deviation
D. Eso deviation - ✔✔ANSWER ✔✔-A. Phoria
Rationale: * Tropia and Phorias are terms to describe
when the eyes are not in alignment with each other
* A tropia is always present, while phorias are there
"some of the time," such as when the patient is tired or
when fusion is broken (you cover an eye and it starts to
drift).
The endpoint of the Maddox Rod test occurs when:
A. The red dot is superimposed on the light
B. The red line goes through the light
C. The red line disappears
D. The red line is above the light - ✔✔ANSWER ✔✔-B.
The red line goes through the light
, A condition in which blood has settled in the bottom half
of the anterior chamber of the eye is called a:
A. Subconjunctival hemorrhage
B. Pink eye
C. Hyphema
D. Glaucoma - ✔✔ANSWER ✔✔-C. Hyphema
Rationale: * A subconjunctival hemorrhage will only
involve the white of the eye, not the center, and will
typically have no pain associated with it
* A hyphema will only affect the center of the eye,
behind the cornea, and will usually have pain and
additional symptoms associated with it
An outward deviation of the eye(s) is a(n) ____ and an
inward deviation of the eye(s) is called a(n) ______.
A. Esodeviation / Exodeviation
B. Esophoria / Exophoria
C. Exodeviation / Esodeviation
D. Exophoria / Esophoria - ✔✔ANSWER ✔✔-C.
Exodeviation / Esodeviation
