NAO TEST 4 QUESTIONS AND ANSWERS
ALL CORRECT
The symptoms of vision problems in children can include any of the following: - Answer-
all the above-squinting, closing or covering one eye, constantly holding materials close
to the face, turning or tiling the head to one side
A reason children really need UV protection - Answer- children are more vulnerable to
damage from short term exposure to the sun and UV
Which type of glare does a polarized lens eliminate? - Answer- blinding
Which type of glare does photochromic lenses eliminate? - Answer- discomforting
Which photochromic lens manufacturing process distributes the photochromic
molecules through the lens - Answer- in-mass
What is the major feature of drive wear lenses? - Answer- they activate behind the
wheel of the car
What kind of lenses does transitions make - Answer- transitions does not make lenses it
a process not a lens type
This form of glare comes from light reflected off the front of your lenses so that others
cant see your eyes or from light reflected off the back or inside of your lenses so that
you see the reflection of your own lenses in your field of vision - Answer- distracting
This comes from everyday bright sunlight. it can occur, depending upon ones sensitivity,
in any weather, at any time of day in any level or intensity of light or going from one
lighting condition to another it can bring on squinting and eye fatique - Answer- disabling
Which type of mirror coating creates a dynamic effect because the lenses appear to
change depending on how the light hits them - Answer- flash
the first type of mirror coating used for mirrored sunglass lenses and most closely match
the traditional definition of a mirror - Answer- metallic
some medical conditions and medications often cause problems with glare, contrast,
and light sensitivity. - Answer- reflect more infrared and ultraviolet
what is another term for 'standard alignment'? - Answer- bench alignment
, for frames with adjustable guard arms, to lower the frame, ____ the pads - Answer-
raise
which is a correct statement concerning light waves that are less than 20 feet from their
source? - Answer- they are considered diverging
what is the range of visible wavelengths the human eye is sensitive to ? - Answer- 380-
760nm
which of the following occurs to the greatest degree when light encounters a lens
surface? - Answer- transmitted
How much light does a 1.49 index lens reflect? - Answer- 8.1%
On what optical characteristic are AR treatments based upon? - Answer- destructive
interference
which type of glare does AR treatment eliminate? - Answer- distracting
what type(s) of UV radiation cause sunburn? - Answer- UVA and UVB
a superficial and painful inflammation of the cornea is known as _____ - Answer-
photokeratitis
which of the following is the third leading cause of blindness worldwide? - Answer-
ARMD
which of the following is mostly absorbed by the crystalline lens of the eye? - Answer-
UVA
how much UV radiation passes through a childs crystalline lens to the retina? - Answer-
75%
the color which provides excellent contrast and improves vision acuity and depth
perception is: - Answer- gray
the color which provides high contrast and filters out the blue light and is worn for
shooting sports? - Answer- yellow
another term that might be used for eyewear "wants" is _____ - Answer- desires
where do fashion trends in modern eyewear usually come from? - Answer- retail
strongholds like apparel
all of the following frame materials are hypoallergenic EXCEPT: - Answer- monel
ALL CORRECT
The symptoms of vision problems in children can include any of the following: - Answer-
all the above-squinting, closing or covering one eye, constantly holding materials close
to the face, turning or tiling the head to one side
A reason children really need UV protection - Answer- children are more vulnerable to
damage from short term exposure to the sun and UV
Which type of glare does a polarized lens eliminate? - Answer- blinding
Which type of glare does photochromic lenses eliminate? - Answer- discomforting
Which photochromic lens manufacturing process distributes the photochromic
molecules through the lens - Answer- in-mass
What is the major feature of drive wear lenses? - Answer- they activate behind the
wheel of the car
What kind of lenses does transitions make - Answer- transitions does not make lenses it
a process not a lens type
This form of glare comes from light reflected off the front of your lenses so that others
cant see your eyes or from light reflected off the back or inside of your lenses so that
you see the reflection of your own lenses in your field of vision - Answer- distracting
This comes from everyday bright sunlight. it can occur, depending upon ones sensitivity,
in any weather, at any time of day in any level or intensity of light or going from one
lighting condition to another it can bring on squinting and eye fatique - Answer- disabling
Which type of mirror coating creates a dynamic effect because the lenses appear to
change depending on how the light hits them - Answer- flash
the first type of mirror coating used for mirrored sunglass lenses and most closely match
the traditional definition of a mirror - Answer- metallic
some medical conditions and medications often cause problems with glare, contrast,
and light sensitivity. - Answer- reflect more infrared and ultraviolet
what is another term for 'standard alignment'? - Answer- bench alignment
, for frames with adjustable guard arms, to lower the frame, ____ the pads - Answer-
raise
which is a correct statement concerning light waves that are less than 20 feet from their
source? - Answer- they are considered diverging
what is the range of visible wavelengths the human eye is sensitive to ? - Answer- 380-
760nm
which of the following occurs to the greatest degree when light encounters a lens
surface? - Answer- transmitted
How much light does a 1.49 index lens reflect? - Answer- 8.1%
On what optical characteristic are AR treatments based upon? - Answer- destructive
interference
which type of glare does AR treatment eliminate? - Answer- distracting
what type(s) of UV radiation cause sunburn? - Answer- UVA and UVB
a superficial and painful inflammation of the cornea is known as _____ - Answer-
photokeratitis
which of the following is the third leading cause of blindness worldwide? - Answer-
ARMD
which of the following is mostly absorbed by the crystalline lens of the eye? - Answer-
UVA
how much UV radiation passes through a childs crystalline lens to the retina? - Answer-
75%
the color which provides excellent contrast and improves vision acuity and depth
perception is: - Answer- gray
the color which provides high contrast and filters out the blue light and is worn for
shooting sports? - Answer- yellow
another term that might be used for eyewear "wants" is _____ - Answer- desires
where do fashion trends in modern eyewear usually come from? - Answer- retail
strongholds like apparel
all of the following frame materials are hypoallergenic EXCEPT: - Answer- monel
