COA JCAHPO Test Questions and Answers | Updated 2026/2027 | Graded A

COA JCAHPO Test Questions and Answers | Updated 2026/2027 | Graded A+ Disorders associated with headaches? - answer-Hypertension or Brain Tumor Headaches caused by refractive error will not appear during? - 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? - answer-Between the lens and the cornea. How many rods are there? - answer-125 million Where are the rods located? - answer-In the retina How many cones are there? - answer-6 million Where are the cones located? - answer-In the retina. Rods are best in what lighting condition? - answer-dim light Without rods what condition will occur? - answer-night-blindnessRods are good in what color light? - answer-Red What type of drops are used to dilate the eyes? - answer-Mydriatic drops What type of drops are used to dilate the eyes and paralyze the fine focusing muscle for near vision? - answer-Cycloplegic drops Measuring PD starts from where and ends where? - answer-Nasal side of right pupil to the temporal side of the pupil on the patients left eye. What is Rhodopsin? - answer-Rod pigment. (allows for visual purple) Rhodopsin forms in ______ and is destroyed by _____? - answer-forms in dark, and is destroyed by light Rhodopsin is composed of what Vitamin? - answer-Vitamin A (deficiency causes night blindness) What is Adie's Syndrome? - 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? - 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? - 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? - 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? - answer-Diabetes High Blood Pressure (HTN) Heart Health/ Cardiovascular Issues Arthritis What are the main symptoms of diplopia? - answer-Loss of alignment of eyes (covering one eye will always eliminate the second image) What is the cause of light flashes? - answer-Retinal detachment What is the cause of Ptosis? - answer-3rd Nerve palsy or Diabetes What is the cause of Diplopia? - answer-Thyroid Disorder Diabetes 3rd Nerve Palsy Myathenia Gravis What is the cause of sudden loss of vision? - answer-Macular degeneration Retinal Detachment Retinal Vein or Artery Occlusion Retrobulbar Neuritis What is the cause of Foreign Body Sensation (FBS)? - answer-Corneal Abrasion Herpes SimplexWhat is the cause of blurred distance vision in adults? - answer-Diabetes Cataracts Macular Edema What is the cause of Halos around lights? - answer-Angle Closure Glaucoma Cataracts What is the cause of spots before the eye? - answer-Retinal Tear Vitreous Detachment What are the most important items to ask patients during work up? - answer-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? - answer-Discharge Pain Blurred Vision What organism is the cause of Acute Conjunctivitis? - answer-Staph Aureus What are some important familial history of common ocular defects? - answer-Myopia Strabismus Glaucoma What are the 6 steps to taking history? - answer-1. Chief Complaint2. Secondary Problems of the eye 3. Systemic or general illness (current) 4. Past ocular disorders 5. Wear contacts or glasses? 6. Therapies, response to therapies What are the three main layers of tears? - answer-Oily Layer (outer) Aqueous Layer (middle) Mucin Layer ( inner) What is the flow path of the aqueous humor? (PPATSA) - answer-(PPATSA) Posterior Chamber---Pupil---Anterior Chamber---Trabecular Meshwork---Schlemm's Canal--- Aqueous Vein Lens of the eye? - answer-A biconvex structure that light passes through. Vitreous Body? - answer-Fluid filled space located behind the lens, occupies 2/3rds of the volume of the eye. Name the drops used that do not have cycloplegic effects. (CHEEP) - answer-cocaine (anesthetic) hydroxaphetamine eucatropine hydrochloride epinepherine (adrenalin) phenylephrine (not used anymore, bad for heart)Example of Cycloplegic Agents. (TCASH) - answer-Atropine (most powerful) homatropine Scopolamine Cyclopentolate Tropicamide When an object is viewed close at hand, what three actions occur? - answer-1. Convergence of eyes towards the object. 2. Accommodation. 3. Pupillary Constriction Swinging Flash Light Test is used to? - answer-Compare the direct and consensual reflexes in the same eye. What are the causes associated with a patient with the symptom of dilated pupils? - answer-3rd Nerve Palsy Trauma Adie's Pupil Acute Glaucoma Drug usage