COA JCAHPO: Questions With Accurate Solutions 100%
Disorders associated with headaches ? Right Ans - Hypertension or Brain
Tumor
Where is the aqueous humor located ? Right Ans - Between the lens and
the cornea .
Headaches caused by Fefractive error will not appear during ? Right Ans -
1. Not appear at night 2. Will not appear during sleep 3. Will not appear when
you wake up
How many rods are there ? Right Ans - 125 million
Where are the rods located ? Right Ans - In the retina
How many cones are there ? Right Ans - 6 million
Where are the cones located ? Right Ans - In the retina .
Rods are best in what lighting condition ? Right Ans - dim light
Without rods what condition will occur ? Right Ans - night - blindness
What type of drops are used to dilate the eyes ? Right Ans - Mydriatic drops
What type of drops are used to dilate the eyes and paralyze the fine focusing
muscle for near vision Right Ans - Cycloplegic
Measuring PD starts from where and ends where ? Right Ans - Nasal side of
right pupil to the temporal side of the pupil on the patients left eye .
What is Rhodopsin ? Right Ans - Rod pigment ( allows for visual purple )
Rhodopsin forms in and is destroyed by ? Right Ans - forms in dark , and is
destroyed by light
Rhodopsin is composed of what Vitamin ? Right Ans - Vitamin A
( deficiency causes night blindness
, What is Adie's Syndrome ? Right 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 ?
Right 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 ? Right
Ans - measure from nasal side of the limbus of patients right eye to the
temporal side of the limbus of the left eye .
What are the most important disorders to ask patients about ? Right Ans -
Diabetes High Blood Pressure ( HTN ) Heart Health / Cardiovascular Issues
Arthritis
What are the main symptoms of diplopia ? Right Ans - Loss of alignment of
eyes ( covering one eye will always eliminate the second image
What is the cause of light flashes ? Right Ans - Retinal detachment
What is the cause of Ptosis ? Right Ans - 3rd Nerve palsy or Diabetes
What is the cause of Diplopia ? Right Ans - Thyroid Disorder Diabetes 3rd
Nerve Palsy Myathenia Gravis
What is the cause of sudden loss of vision ? Right Ans - Macular
degeneration Retinal Detachment Retinal Vein or Artery Occlusion
Retrobulbar Neuritis -inflammation of the optic nerve can be associated wy
ms .
What is the cause of Foreign Body Sensation ( FBS ) ? Right Ans - Corneal
Abrasion Herpes Simplex
What is the cause of Halos around lights ? Right Ans - Angle Closure
Glaucoma Cataracts
What is the cause of spots i before the eye ? Right Ans - Retinal Tear
Vitreous Detachment
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