COA JCAHPO Test Exam Questions and
Answers Graded A+
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
What is the cause of sudden loss of vision? - Correct answer-Macular degeneration
Retinal Detachment
Retinal Vein or Artery Occlusion
Retrobulbar Neuritis
What is the cause of Foreign Body Sensation (FBS)? - Correct answer-Corneal
Abrasion
Herpes Simplex
What is the cause of blurred distance vision in adults? - Correct answer-Diabetes
Cataracts
Macular Edema
What is the cause of Halos around lights? - Correct answer-Angle Closure
Glaucoma
Cataracts
What is the cause of spots before the eye? - Correct answer-Retinal Tear
Answers Graded A+
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
What is the cause of sudden loss of vision? - Correct answer-Macular degeneration
Retinal Detachment
Retinal Vein or Artery Occlusion
Retrobulbar Neuritis
What is the cause of Foreign Body Sensation (FBS)? - Correct answer-Corneal
Abrasion
Herpes Simplex
What is the cause of blurred distance vision in adults? - Correct answer-Diabetes
Cataracts
Macular Edema
What is the cause of Halos around lights? - Correct answer-Angle Closure
Glaucoma
Cataracts
What is the cause of spots before the eye? - Correct answer-Retinal Tear
