COT Exam Questions With Complete Solutions
A centrally located spectral reflectance and haze along the
periphery of the image area is a result of what? Correct Answers
excessive cameral to cornea distance
A controlled photograph for psuedofluorescence and
autofluorescence is taken with the flash setting for fluorescein
and with what filters? Correct Answers Both the exciter filter
and the barrier filter
A diamond knife may be measured by the caliperon the handle
but should also be checked against a coin guage, a ruler, or what
kind of scope? Correct Answers Microscope
Deficient color vision suggests what? Correct Answers Retinal
or optic nerve disease
Find the total amount of prism induced in the follow situation:
Glasses RX OD +12 sph; OS +10sph; Both optical centers are
displaced 5 mm temporally (centered out). Correct Answers OD
has 6 prism diopters of BO. OS has 5 prism diopters of BO. The
total is 11 prism diopters of BO.
Fluorescein angiography requires a fluorescein filter set
consisting of what? Correct Answers An exciter filter and a
barrier filter
Fluorescein sodium is available in what two different
concentrations? Correct Answers 10% and 25%
, For greater reflection intensity to view the lens and cornea, what
internal structure can serve as a brighter relecting surface?
Correct Answers Optic nerve
How do you eliminate a crescent shaped artifact? Correct
Answers Move the camera in the opposite direction of the
artifact
How does the Maddox rod dissociate the yes and prevent
fusion? Correct Answers It changes size, shape, and color of a
point of light to a line of light so that fusion is impossible
If a patient experiences stinging or burning around the injection
site, whoat would be the most likely cause? Correct Answers
Extravasation of the dye
If the posterior pole cannot be visualized, which instument
would be requested? Correct Answers B-scan
In contact A-scan, a 1mm compression may result in how many
D of calculated IOL power error? Correct Answers 3 D
In contact A-scan, what type of anterior chamber manifests the
least evidnece of compression? Correct Answers the lngest
ACD (anterior chamber depth) measurement
In order to perform the IOL calc, what other piece of info is
required besides A-scan biometry and keratometry readings?
Correct Answers A-constant
A centrally located spectral reflectance and haze along the
periphery of the image area is a result of what? Correct Answers
excessive cameral to cornea distance
A controlled photograph for psuedofluorescence and
autofluorescence is taken with the flash setting for fluorescein
and with what filters? Correct Answers Both the exciter filter
and the barrier filter
A diamond knife may be measured by the caliperon the handle
but should also be checked against a coin guage, a ruler, or what
kind of scope? Correct Answers Microscope
Deficient color vision suggests what? Correct Answers Retinal
or optic nerve disease
Find the total amount of prism induced in the follow situation:
Glasses RX OD +12 sph; OS +10sph; Both optical centers are
displaced 5 mm temporally (centered out). Correct Answers OD
has 6 prism diopters of BO. OS has 5 prism diopters of BO. The
total is 11 prism diopters of BO.
Fluorescein angiography requires a fluorescein filter set
consisting of what? Correct Answers An exciter filter and a
barrier filter
Fluorescein sodium is available in what two different
concentrations? Correct Answers 10% and 25%
, For greater reflection intensity to view the lens and cornea, what
internal structure can serve as a brighter relecting surface?
Correct Answers Optic nerve
How do you eliminate a crescent shaped artifact? Correct
Answers Move the camera in the opposite direction of the
artifact
How does the Maddox rod dissociate the yes and prevent
fusion? Correct Answers It changes size, shape, and color of a
point of light to a line of light so that fusion is impossible
If a patient experiences stinging or burning around the injection
site, whoat would be the most likely cause? Correct Answers
Extravasation of the dye
If the posterior pole cannot be visualized, which instument
would be requested? Correct Answers B-scan
In contact A-scan, a 1mm compression may result in how many
D of calculated IOL power error? Correct Answers 3 D
In contact A-scan, what type of anterior chamber manifests the
least evidnece of compression? Correct Answers the lngest
ACD (anterior chamber depth) measurement
In order to perform the IOL calc, what other piece of info is
required besides A-scan biometry and keratometry readings?
Correct Answers A-constant
