COA JCAHPO Test Prep
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
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COA JCAHPO Test Prep
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
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.
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? - A
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