ABO ADVANCE STUDY GUIDE EXAM QUESTIONS AND
ANSWERS GRADED A+ LATEST UPDATE.
When taking seg height measurements, which of the following
situations could result in a parallax error? ANS >>> Patient sitting/
dispenser standing erect
Which of the following is not significant in identifying the problem of
vertical imbalance? ANS >>> Patient’s age
Which of the following elements is NOT critical when determining
vertical imbalance? ANS >>> Lens power in the 180-degree meridian
A prism will displace the object being viewed towards its ________. ANS
>>> Apex
A prism will bend light towards its _______. ANS >>> Base
When dealing with problems of vertical imbalance which is the critical
meridian of total lens? ANS >>> 90
,Which of the following prescriptions would pose the greatest prismatic
imbalance at a reading depth of 10mm? ANS >>> OD +2.50
OS -0.25 +2.50 x 090
A plus lens moved downward from the primary position will result in:
ANS >>> Base down prismatic effect
What is a hereditary pigmentary degeneration of the retina called which
results in gradual loss of peripheral vision? ANS >>> Retinitis pigmentosa
What is ocular hypertension? ANS >>> Elevation of pressure in the eye
above the range considered with a detectable change in vision or
damage to the structure of the eye.
or
Eye pressure can be elevated and cause damage in some eyes, but no
damage in others.
Which of the following statements is false regarding corneal ulcers?
Corneal ulcers can be ________. ANS >>> of little concern
,Approximately what percentage of humans have some alterations in
lens transparency after age 65? ANS >>> 60%
What type of cataract is a fully developed opacity of the lens with fluid
generation and swelling of the lens volume? ANS >>> Hypermature
Which of the following statements is false regarding cataracts? ANS >>>
Cataracts will only form in the nucleus of the lens.
________ is the condition in which both eyes have equal refractive
power. ANS >>> Isometropia
Irregular astigmatism occurs when the principal meridians are not
uniform along a major meridian and not uniform along a meridian. They
are found at some place other than 90 degrees apart. Irregular
astigmatism is commonly caused by trauma surgery, or corneal
dystrophy. TRUE or FALSE ANS >>> True
In poor light, a person sees red light better than blue, which is why the
ocular system tends to be more myopic, i.e. twilight myopia.
TRUE or FALSE ANS >>> True
_______ are _____ cells that detect motion within a field. ANS >>> Rods-
Long
, The crystalline lens is the same size at birth as in an adult; however, it
adds cell layers throughout life, packing them in which makes the
crystalline lens harder and is one of the causes of presbyopia. TRUE or
FALSE ANS >>> False
The triangular structure between the choroid and root of the iris,
containing the ciliary epithelium, stroma, and ciliary muscle is the: ANS
>>> Ciliary body
There are 5 layers of the cornea. They are: ANS >>> From most anterior to
posterior.
Epithelium-Bowman's Layer- Stroma- Descemet membrane-
Endothelium
The refractive index of the cornea is: ANS >>> 1.376
The most powerful refracting medium of the eyes optical system is the
cornea. There are five layers of the cornea, each having a unique
purpose and cell structure. One of the requirements of clear vision is
that the cornea ________. ANS >>> must remain transparent and must
have regular cell structures of all layers.
Polarized filters are made by stretching thin sheets of __________ in
one meridian. ANS >>> Polyvinyl alcohol
ANSWERS GRADED A+ LATEST UPDATE.
When taking seg height measurements, which of the following
situations could result in a parallax error? ANS >>> Patient sitting/
dispenser standing erect
Which of the following is not significant in identifying the problem of
vertical imbalance? ANS >>> Patient’s age
Which of the following elements is NOT critical when determining
vertical imbalance? ANS >>> Lens power in the 180-degree meridian
A prism will displace the object being viewed towards its ________. ANS
>>> Apex
A prism will bend light towards its _______. ANS >>> Base
When dealing with problems of vertical imbalance which is the critical
meridian of total lens? ANS >>> 90
,Which of the following prescriptions would pose the greatest prismatic
imbalance at a reading depth of 10mm? ANS >>> OD +2.50
OS -0.25 +2.50 x 090
A plus lens moved downward from the primary position will result in:
ANS >>> Base down prismatic effect
What is a hereditary pigmentary degeneration of the retina called which
results in gradual loss of peripheral vision? ANS >>> Retinitis pigmentosa
What is ocular hypertension? ANS >>> Elevation of pressure in the eye
above the range considered with a detectable change in vision or
damage to the structure of the eye.
or
Eye pressure can be elevated and cause damage in some eyes, but no
damage in others.
Which of the following statements is false regarding corneal ulcers?
Corneal ulcers can be ________. ANS >>> of little concern
,Approximately what percentage of humans have some alterations in
lens transparency after age 65? ANS >>> 60%
What type of cataract is a fully developed opacity of the lens with fluid
generation and swelling of the lens volume? ANS >>> Hypermature
Which of the following statements is false regarding cataracts? ANS >>>
Cataracts will only form in the nucleus of the lens.
________ is the condition in which both eyes have equal refractive
power. ANS >>> Isometropia
Irregular astigmatism occurs when the principal meridians are not
uniform along a major meridian and not uniform along a meridian. They
are found at some place other than 90 degrees apart. Irregular
astigmatism is commonly caused by trauma surgery, or corneal
dystrophy. TRUE or FALSE ANS >>> True
In poor light, a person sees red light better than blue, which is why the
ocular system tends to be more myopic, i.e. twilight myopia.
TRUE or FALSE ANS >>> True
_______ are _____ cells that detect motion within a field. ANS >>> Rods-
Long
, The crystalline lens is the same size at birth as in an adult; however, it
adds cell layers throughout life, packing them in which makes the
crystalline lens harder and is one of the causes of presbyopia. TRUE or
FALSE ANS >>> False
The triangular structure between the choroid and root of the iris,
containing the ciliary epithelium, stroma, and ciliary muscle is the: ANS
>>> Ciliary body
There are 5 layers of the cornea. They are: ANS >>> From most anterior to
posterior.
Epithelium-Bowman's Layer- Stroma- Descemet membrane-
Endothelium
The refractive index of the cornea is: ANS >>> 1.376
The most powerful refracting medium of the eyes optical system is the
cornea. There are five layers of the cornea, each having a unique
purpose and cell structure. One of the requirements of clear vision is
that the cornea ________. ANS >>> must remain transparent and must
have regular cell structures of all layers.
Polarized filters are made by stretching thin sheets of __________ in
one meridian. ANS >>> Polyvinyl alcohol
