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COMT TEST #1 QUESTIONS WITH 100% COMPLETE SOLUTIONS!!
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Name: Score:70 Multiple choice questions
Term 1 of 70
Which would be used to increase circulation?
Between 6 and 8
Solutions which have a pH balance below 6.6 or above 7.8 may be uncomfortable when
instilled in the eye. The range for a comfortable pH is between 6 and 8. Buffers can be
added to a drug to maintain a comfortable pH balance.
A Bick procedure
A Bick's procedure is a shortening technique for a lower eyelid that does not rest against
the eyeball. This is ectropion.
A longer than normal focal length lens
When the camera is used farther from the object to be photographed, perspective is more
normal. Depth of field refers to how much of the subject will be in sharp focus.
A hot compress
Heat increases circulation. Cold is used to decrease swelling and bruising. Hot compresses
can be applied to an area to increase circulation.
Definition 2 of 70
binocular depth perception, stereopcopic vision, or 3rd grade fusion.
Which prescription denotes emmetropia?
Steropsis is also called
Symptoms of cataracts include:
The Schiotz tonometer is applied to the eye
,Term 3 of 70
Do not use commercial glass cleaner on plastic lenses because
those with aspirin
those for erectile dysfunction
blood thinners
The cornea
The cornea is a clear, transparent structure with a brilliant, shiny surface through which
most of the refraction of the eye takes place. The cornea is thicker at the periphery that at
the center. The lens and vitreous have some refractive power, but the strongest refractive
structure of the eye is the cornea. The zonular fibers support the eye in place.
LASIK
In LASIK surgery, a microkeratome is used to cut a thin flap in the top most corneal layers.
this can cloud the lens
A plastic lens may cloud if cleaned with commercial glass cleaner.
,Term 4 of 70
Most of the refraction of the eye takes place in the:
The cornea
The cornea is a clear, transparent structure with a brilliant, shiny surface through which
most of the refraction of the eye takes place. The cornea is thicker at the periphery that at
the center. The lens and vitreous have some refractive power, but the strongest refractive
structure of the eye is the cornea. The zonular fibers support the eye in place.
Make note of the pertinent facts regarding the patient's medical history.
It is important to listen carefully when a patient is relating his/her story and not any facts
which may be pertinent for the physician's diagnosis. The doctor makes the diagnosis. The
patient may be unaware of pertinent information for his/her issue and may not note this in
the office questionnaire.
Posterior subcapsular
Steroids and diabetes are classically known to cause posterior subcapsular cataracts on the
back surface of the lens. Nuclear sclerotic cataracts are common and usually from aging.
Posterior polar cataracts are often congenital. Cortical cataracts are also common and
have many causes.
IOP levels elevated above normal
Ocular hypertension is characterized by IOP pressure that is elevated above normal. There
is not demonstrable loss in the visual field or damage to the optic nerve. Hypertensive
retinopathy is a pathologic condition characterized by retinal changes accompanying high
blood pressure. These may include narrow arterioles, dull light reflections from blood
vessel surfaces, and vein irregularities.
, Term 5 of 70
What determines the number of incisions and the diameter of the central zone in a radial
keratotomy?
The patient's request
The patient's astigmatic error
The patient's myopic refraction and age
The length and distance from the corneal center
Term 6 of 70
The examiner is adjusting the lensometer. The eye piece should be:
red, green and blue
The eye’s pigments are sensitive to red, green and blue.
Shaded
Shaded areas on the printout indicate that the area scanned has less tissue than average.
GDx uses a neural network to analyze parameters used to determine the risk of glaucoma.
Turned to its most plus position
The eye piece should be adjusted to its most plus position. The examiner may wish to
record all prescriptions in terms of plus cylinders.
the real world is a mixture of shades and shadows
The standard Snellen chart employs black letters on a bright white background, with high
contrast. This chart can give an exaggerated sense of acuity as it has more contrast than the
usual shades and shadows we experience in the world. For a person with low-contrast
sensitivity, having a low-contrast situation can be very difficult to understand.
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