JCAHPO COMT (Optometry) COMPLETE
QUESTIONS WITH VERIFIED ANSWERS RATED A
What is the most exact and extensive approach to optical calculations
Trigonometric ray tracing
What is the duo chrome test used to determine
Over/under correction
Why must the optician know the interpupillary distance?
Ensure that the patient looks through the optical center of both lenses
When moving from the contact lens plane to the spectacles plane, how much
plus power is required?
Less
How much flatter than the flattest corneal meridian do you fit a soft contact
lens?
3 to 4 D
During the first 3 days of wear, it is recommended that a new CL patient NOT
wear soft lenses more than how many hours a day?
8-10 hours
What is the term for the length of the line from the apex of a contact lens to a
line connecting the edges?
Sagittal depth
What is the most important factor to overcome for the success of a contact lens
wearer?
Lack of corneal oxygen flow
What type of contact lens is Most suited for a keratoconus patient ?
Rigid gas permeable
What type of contact lens creates corneal hypoxia and spectacle blur
,Rigid
What is the recommended follow up for preventative maintenance for
asymptomatic contact lens wearer?
Regularly intervals
What are two types of bridges located on a spectacle frame?
Keyhole and saddle
Part of the rules for transposition is changing the axis how many degrees?
90 degrees
What is the term for a lens consisting if two cylinders of equal, but opposite
powers?
Cross cyliner
What is the formula used to calculate induced prismatic effect caused by
decentered spectacle lenses?
Prentice's rule
What is the spherical equivalent of +2.00 + 5.00 X 180?
+4.50
What is the minus cylinder transposition of -2.50 + 1.00 X 175?
-1.50 - 1.00 X 85
What is the term for when the fluorescein first enters the eye?
Arterial/choroidal flush
What imaging method discriminates between tissues with different levels of
water content?
MRI
What is the term for the midphase of fluorescein angiography?
Venous
What is the term for the barrier filter used in fluorescein angiography?
, Yellow
Where can the dye used in fluorescein angiography be seen for the greatest
amount of time?
Edema
What method of slit lmao illumination utilizes a wide slit beam that is directed
to strike the limbal area where the light is absorbed and "piped" throughout the
cornea
Sclerotic scatter
What electrodiagnostic method assesses the entire visual pathway ?
VER
Term for method used to examine the area between the ora serrata and the
equator during indirect ophthalmoscopy?
Scleral depression
Term for increase in the visibility of the slit lamp beam in the anterior chamber
due to an increase in protein content in the aqueous?
Flare
Images of version abnormalities are BEST documented with?
Digital cameras
What is the purpose of dilating an eye?
Allow for more complete posterior exam
The height of a choroidal melanoma may be best measured using?
A vector A-scan sonography
Computerized corneal topography is useful for the assessment of the?
Fitting of rgp lens
What is the term for distance between the nearest and the furthest points that an
object will be in focus on a camera?
Depth of field
QUESTIONS WITH VERIFIED ANSWERS RATED A
What is the most exact and extensive approach to optical calculations
Trigonometric ray tracing
What is the duo chrome test used to determine
Over/under correction
Why must the optician know the interpupillary distance?
Ensure that the patient looks through the optical center of both lenses
When moving from the contact lens plane to the spectacles plane, how much
plus power is required?
Less
How much flatter than the flattest corneal meridian do you fit a soft contact
lens?
3 to 4 D
During the first 3 days of wear, it is recommended that a new CL patient NOT
wear soft lenses more than how many hours a day?
8-10 hours
What is the term for the length of the line from the apex of a contact lens to a
line connecting the edges?
Sagittal depth
What is the most important factor to overcome for the success of a contact lens
wearer?
Lack of corneal oxygen flow
What type of contact lens is Most suited for a keratoconus patient ?
Rigid gas permeable
What type of contact lens creates corneal hypoxia and spectacle blur
,Rigid
What is the recommended follow up for preventative maintenance for
asymptomatic contact lens wearer?
Regularly intervals
What are two types of bridges located on a spectacle frame?
Keyhole and saddle
Part of the rules for transposition is changing the axis how many degrees?
90 degrees
What is the term for a lens consisting if two cylinders of equal, but opposite
powers?
Cross cyliner
What is the formula used to calculate induced prismatic effect caused by
decentered spectacle lenses?
Prentice's rule
What is the spherical equivalent of +2.00 + 5.00 X 180?
+4.50
What is the minus cylinder transposition of -2.50 + 1.00 X 175?
-1.50 - 1.00 X 85
What is the term for when the fluorescein first enters the eye?
Arterial/choroidal flush
What imaging method discriminates between tissues with different levels of
water content?
MRI
What is the term for the midphase of fluorescein angiography?
Venous
What is the term for the barrier filter used in fluorescein angiography?
, Yellow
Where can the dye used in fluorescein angiography be seen for the greatest
amount of time?
Edema
What method of slit lmao illumination utilizes a wide slit beam that is directed
to strike the limbal area where the light is absorbed and "piped" throughout the
cornea
Sclerotic scatter
What electrodiagnostic method assesses the entire visual pathway ?
VER
Term for method used to examine the area between the ora serrata and the
equator during indirect ophthalmoscopy?
Scleral depression
Term for increase in the visibility of the slit lamp beam in the anterior chamber
due to an increase in protein content in the aqueous?
Flare
Images of version abnormalities are BEST documented with?
Digital cameras
What is the purpose of dilating an eye?
Allow for more complete posterior exam
The height of a choroidal melanoma may be best measured using?
A vector A-scan sonography
Computerized corneal topography is useful for the assessment of the?
Fitting of rgp lens
What is the term for distance between the nearest and the furthest points that an
object will be in focus on a camera?
Depth of field
