CCOA Exam Questions With Complete Solutions
"With the rule astigmatism" would be described as? Correct
Answers the steepest meridian lies at 090 degrees
A __________ is used to measure the center thickness of a lens.
Correct Answers Lens caliper
A disadvantage of straight top bifocals vs. PALs (Progressive
Addition Lenses) is that: Correct Answers They are limited in
their ability to provide clear vision at intermediate distances
A disadvantage of using monovision to compensate for
presbyopia is: Correct Answers Depth perception is
compromised
A good reason for using aspheric lens design would be: Correct
Answers For optically correcting aberrations in high Rxs
A lens that has a uniform curve on the front surface and
optimized curves on the back surface is: Correct Answers An
atoric
A patient has a PD of 65. The frame measurements are as
follows: A = 53, B = 49, DBL = 18. How much will each lens
need to be decentered? Correct Answers 3mm
A positive aspect of anti - reflection coated lenses is: Correct
Answers Thick lenses appear thinner
, A report letter differs from a referral letter in that: Correct
Answers Referral letters require follow - up action
A surfactant is sometimes called: Correct Answers Daily
cleaner
A true ocular emergency requiring treatment within minutes is:
Correct Answers Sudden loss of vision
Abnormal symptoms when adapting to GP lens wear include:
Correct Answers Vision not clear through glasses for more than
one hour after lens removal
Acute glaucoma: Correct Answers Is a build-up of eye pressure
resulting from a blockage of fluid by the iris
All low vision devices? Correct Answers Are designed to focus
for specific tasks at a specific focal length
An advantage of using photochromic glass over plastic lenses is:
Correct Answers Function never wears out
An occupational progressive lens: Correct Answers Is the lens
of choice for primarily intermediate and near viewing
At what point do the optic nerves become the optic tracts?
Correct Answers Optic Chiasm
Blink inhibition can: Correct Answers Reduce the cleaning and
wetting of the anterior surface of contact lenses
"With the rule astigmatism" would be described as? Correct
Answers the steepest meridian lies at 090 degrees
A __________ is used to measure the center thickness of a lens.
Correct Answers Lens caliper
A disadvantage of straight top bifocals vs. PALs (Progressive
Addition Lenses) is that: Correct Answers They are limited in
their ability to provide clear vision at intermediate distances
A disadvantage of using monovision to compensate for
presbyopia is: Correct Answers Depth perception is
compromised
A good reason for using aspheric lens design would be: Correct
Answers For optically correcting aberrations in high Rxs
A lens that has a uniform curve on the front surface and
optimized curves on the back surface is: Correct Answers An
atoric
A patient has a PD of 65. The frame measurements are as
follows: A = 53, B = 49, DBL = 18. How much will each lens
need to be decentered? Correct Answers 3mm
A positive aspect of anti - reflection coated lenses is: Correct
Answers Thick lenses appear thinner
, A report letter differs from a referral letter in that: Correct
Answers Referral letters require follow - up action
A surfactant is sometimes called: Correct Answers Daily
cleaner
A true ocular emergency requiring treatment within minutes is:
Correct Answers Sudden loss of vision
Abnormal symptoms when adapting to GP lens wear include:
Correct Answers Vision not clear through glasses for more than
one hour after lens removal
Acute glaucoma: Correct Answers Is a build-up of eye pressure
resulting from a blockage of fluid by the iris
All low vision devices? Correct Answers Are designed to focus
for specific tasks at a specific focal length
An advantage of using photochromic glass over plastic lenses is:
Correct Answers Function never wears out
An occupational progressive lens: Correct Answers Is the lens
of choice for primarily intermediate and near viewing
At what point do the optic nerves become the optic tracts?
Correct Answers Optic Chiasm
Blink inhibition can: Correct Answers Reduce the cleaning and
wetting of the anterior surface of contact lenses
