COA JCAHPO Test Questions with 100% Correct
Answers
Disorders associated with headaches? Correct Answer:
Hypertension or Brain Tumor
Headaches caused by refractive error will not appear
during? Correct Answer: 1. Not appear at night
2. Will not appear during sleep
3. Will not appear when you wake up
Where is the aqueous humor located? Correct Answer:
Between the lens and the cornea.
How many rods are there? Correct Answer: 125 million
Where are the rods located? Correct Answer: In the
retina
How many cones are there? Correct Answer: 6 million
Where are the cones located? Correct Answer: In the
retina.
,Rods are best in what lighting condition? Correct
Answer: dim light
Without rods what condition will occur? Correct Answer:
night-blindness
Rods are good in what color light? Correct Answer: Red
What type of drops are used to dilate the eyes? Correct
Answer: Mydriatic drops
What type of drops are used to dilate the eyes and
paralyze the fine focusing muscle for near vision?
Correct Answer: Cycloplegic drops
Measuring PD starts from where and ends where?
Correct Answer: Nasal side of right pupil to the temporal
side of the pupil on the patients left eye.
What is Rhodopsin? Correct Answer: Rod pigment.
(allows for visual purple)
Rhodopsin forms in ______ and is destroyed by _____?
Correct Answer: forms in dark, and is destroyed by light
,Rhodopsin is composed of what Vitamin? Correct
Answer: Vitamin A (deficiency causes night blindness)
What is Adie's Syndrome? Correct Answer: Tonic Pupil.
(pupil responds to light stimulation very slowly)
How do you measure a patient's PD when they can only
see from one eye? Correct Answer: measure from
center of the pupil of the good eye to the center of the
bridge of the nose
How do you measure a patient's PD when they have
unequal pupils? Correct Answer: measure from nasal
side of the limbus of patients right eye to the temporal
side of the limbus of the left eye.
How do you measure a patient's PD when they have a
squint? Correct Answer: Measure from the inner canthus
of one eye to the outer canthus of the opposite eye.
What are the most important disorders to ask patients
about? Correct Answer: Diabetes
High Blood Pressure (HTN)
, Heart Health/ Cardiovascular Issues
Arthritis
What are the main symptoms of diplopia? Correct
Answer: Loss of alignment of eyes
(covering one eye will always eliminate the second
image)
What is the cause of light flashes? Correct Answer:
Retinal detachment
What is the cause of Ptosis? Correct Answer: 3rd Nerve
palsy or Diabetes
What is the cause of Diplopia? Correct Answer: Thyroid
Disorder
Diabetes
3rd Nerve Palsy
Myathenia Gravis
Answers
Disorders associated with headaches? Correct Answer:
Hypertension or Brain Tumor
Headaches caused by refractive error will not appear
during? Correct Answer: 1. Not appear at night
2. Will not appear during sleep
3. Will not appear when you wake up
Where is the aqueous humor located? Correct Answer:
Between the lens and the cornea.
How many rods are there? Correct Answer: 125 million
Where are the rods located? Correct Answer: In the
retina
How many cones are there? Correct Answer: 6 million
Where are the cones located? Correct Answer: In the
retina.
,Rods are best in what lighting condition? Correct
Answer: dim light
Without rods what condition will occur? Correct Answer:
night-blindness
Rods are good in what color light? Correct Answer: Red
What type of drops are used to dilate the eyes? Correct
Answer: Mydriatic drops
What type of drops are used to dilate the eyes and
paralyze the fine focusing muscle for near vision?
Correct Answer: Cycloplegic drops
Measuring PD starts from where and ends where?
Correct Answer: Nasal side of right pupil to the temporal
side of the pupil on the patients left eye.
What is Rhodopsin? Correct Answer: Rod pigment.
(allows for visual purple)
Rhodopsin forms in ______ and is destroyed by _____?
Correct Answer: forms in dark, and is destroyed by light
,Rhodopsin is composed of what Vitamin? Correct
Answer: Vitamin A (deficiency causes night blindness)
What is Adie's Syndrome? Correct Answer: Tonic Pupil.
(pupil responds to light stimulation very slowly)
How do you measure a patient's PD when they can only
see from one eye? Correct Answer: measure from
center of the pupil of the good eye to the center of the
bridge of the nose
How do you measure a patient's PD when they have
unequal pupils? Correct Answer: measure from nasal
side of the limbus of patients right eye to the temporal
side of the limbus of the left eye.
How do you measure a patient's PD when they have a
squint? Correct Answer: Measure from the inner canthus
of one eye to the outer canthus of the opposite eye.
What are the most important disorders to ask patients
about? Correct Answer: Diabetes
High Blood Pressure (HTN)
, Heart Health/ Cardiovascular Issues
Arthritis
What are the main symptoms of diplopia? Correct
Answer: Loss of alignment of eyes
(covering one eye will always eliminate the second
image)
What is the cause of light flashes? Correct Answer:
Retinal detachment
What is the cause of Ptosis? Correct Answer: 3rd Nerve
palsy or Diabetes
What is the cause of Diplopia? Correct Answer: Thyroid
Disorder
Diabetes
3rd Nerve Palsy
Myathenia Gravis
