COA JCAHPO TEST EXAM QUESTIONS
AND ANSWERS 100% PASS 2026 UPDATE.
Disorders associated with headaches? - ANS Hypertension or Brain Tumor
Headaches caused by refractive error will not appear during? - ANS 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? - ANS Between the lens and the cornea.
How many rods are there? - ANS 125 million
Where are the rods located? - ANS In the retina
How many cones are there? - ANS 6 million
Where are the cones located? - ANS In the retina.
Rods are best in what lighting condition? - ANS dim light
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,Without rods what condition will occur? - ANS night-blindness
Rods are good in what color light? - ANS Red
What type of drops are used to dilate the eyes? - ANS Mydriatic drops
What type of drops are used to dilate the eyes and paralyze the fine focusing muscle for near
vision? - ANS Cycloplegic drops
Measuring PD starts from where and ends where? - ANS Nasal side of right pupil to the
temporal side of the pupil on the patients left eye.
What is Rhodopsin? - ANS Rod pigment. (allows for visual purple)
Rhodopsin forms in ______ and is destroyed by _____? - ANS forms in dark, and is destroyed
by light
Rhodopsin is composed of what Vitamin? - ANS Vitamin A (deficiency causes night blindness)
What is Adie's Syndrome? - ANS 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? - ANS 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? - ANS 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? - ANS Measure from the inner
canthus of one eye to the outer canthus of the opposite eye.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,What are the most important disorders to ask patients about? - ANS Diabetes
High Blood Pressure (HTN)
Heart Health/ Cardiovascular Issues
Arthritis
What are the main symptoms of diplopia? - ANS Loss of alignment of eyes
(covering one eye will always eliminate the second image)
What is the cause of light flashes? - ANS Retinal detachment
What is the cause of Ptosis? - ANS 3rd Nerve palsy or Diabetes
What is the cause of Diplopia? - ANS Thyroid Disorder
Diabetes
3rd Nerve Palsy
Myathenia Gravis
What is the cause of sudden loss of vision? - ANS Macular degeneration
Retinal Detachment
Retinal Vein or Artery Occlusion
Retrobulbar Neuritis
What is the cause of Foreign Body Sensation (FBS)? - ANS Corneal Abrasion
Herpes Simplex
What is the cause of blurred distance vision in adults? - ANS Diabetes
Cataracts
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Macular Edema
What is the cause of Halos around lights? - ANS Angle Closure Glaucoma
Cataracts
What is the cause of spots before the eye? - ANS Retinal Tear
Vitreous Detachment
What are the most important items to ask patients during work up? - ANS 1. Present and Past
Health History
2. Medication (current and exact name/ purpose)
3. Allergies (drug, inhalants, contactants, food, injections, ingestants)
What symptoms are associated with Acute conjunctivitis? - ANS Discharge
Pain
Blurred Vision
What organism is the cause of Acute Conjunctivitis? - ANS Staph Aureus
What are some important familial history of common ocular defects? - ANS Myopia
Strabismus
Glaucoma
What are the 6 steps to taking history? - ANS 1. Chief Complaint
2. Secondary Problems of the eye
3. Systemic or general illness (current)
4. Past ocular disorders
5. Wear contacts or glasses?
4 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
AND ANSWERS 100% PASS 2026 UPDATE.
Disorders associated with headaches? - ANS Hypertension or Brain Tumor
Headaches caused by refractive error will not appear during? - ANS 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? - ANS Between the lens and the cornea.
How many rods are there? - ANS 125 million
Where are the rods located? - ANS In the retina
How many cones are there? - ANS 6 million
Where are the cones located? - ANS In the retina.
Rods are best in what lighting condition? - ANS dim light
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,Without rods what condition will occur? - ANS night-blindness
Rods are good in what color light? - ANS Red
What type of drops are used to dilate the eyes? - ANS Mydriatic drops
What type of drops are used to dilate the eyes and paralyze the fine focusing muscle for near
vision? - ANS Cycloplegic drops
Measuring PD starts from where and ends where? - ANS Nasal side of right pupil to the
temporal side of the pupil on the patients left eye.
What is Rhodopsin? - ANS Rod pigment. (allows for visual purple)
Rhodopsin forms in ______ and is destroyed by _____? - ANS forms in dark, and is destroyed
by light
Rhodopsin is composed of what Vitamin? - ANS Vitamin A (deficiency causes night blindness)
What is Adie's Syndrome? - ANS 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? - ANS 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? - ANS 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? - ANS Measure from the inner
canthus of one eye to the outer canthus of the opposite eye.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,What are the most important disorders to ask patients about? - ANS Diabetes
High Blood Pressure (HTN)
Heart Health/ Cardiovascular Issues
Arthritis
What are the main symptoms of diplopia? - ANS Loss of alignment of eyes
(covering one eye will always eliminate the second image)
What is the cause of light flashes? - ANS Retinal detachment
What is the cause of Ptosis? - ANS 3rd Nerve palsy or Diabetes
What is the cause of Diplopia? - ANS Thyroid Disorder
Diabetes
3rd Nerve Palsy
Myathenia Gravis
What is the cause of sudden loss of vision? - ANS Macular degeneration
Retinal Detachment
Retinal Vein or Artery Occlusion
Retrobulbar Neuritis
What is the cause of Foreign Body Sensation (FBS)? - ANS Corneal Abrasion
Herpes Simplex
What is the cause of blurred distance vision in adults? - ANS Diabetes
Cataracts
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Macular Edema
What is the cause of Halos around lights? - ANS Angle Closure Glaucoma
Cataracts
What is the cause of spots before the eye? - ANS Retinal Tear
Vitreous Detachment
What are the most important items to ask patients during work up? - ANS 1. Present and Past
Health History
2. Medication (current and exact name/ purpose)
3. Allergies (drug, inhalants, contactants, food, injections, ingestants)
What symptoms are associated with Acute conjunctivitis? - ANS Discharge
Pain
Blurred Vision
What organism is the cause of Acute Conjunctivitis? - ANS Staph Aureus
What are some important familial history of common ocular defects? - ANS Myopia
Strabismus
Glaucoma
What are the 6 steps to taking history? - ANS 1. Chief Complaint
2. Secondary Problems of the eye
3. Systemic or general illness (current)
4. Past ocular disorders
5. Wear contacts or glasses?
4 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
