A superficial and painful inflammation of the cornea is known as _____ Right
Ans - photokeratitis
Which of the following is the third leading cause of blindness worldwide?
Right Ans - ARMD
Which of the following is mostly absorbed by the crystalline lens of the eye?
Right Ans - UVA
How much UV radiation passes through a childs crystalline lens to the retina?
Right Ans - 75%
The color which provides excellent contrast and improves vision acuity and
depth perception is: Right Ans - gray
The color which provides high contrast and filters out the blue light and is
worn for shooting sports? Right Ans - yellow
Another term that might be used for eyewear "wants" is _____ Right Ans -
desires
Where do fashion trends in modern eyewear usually come from? Right Ans
- retail strongholds like apparel
All of the following frame materials are hypoallergenic EXCEPT: Right Ans -
monel
According to the text, a _____ is something that springs into our culture and
disappears almost as quickly after some short period of time. Right Ans -
trend
What two factors primarily drive technical eyewear trends? Right Ans -
consumer needs and wants, and technologys ability to produce the product
HIPAA is the acronym for the _____of 1996 Right Ans - Health Insurance
Portability and Accountability
, Being compliant with HIPAA requires Right Ans - all the above - improving
the efficiency of health care delivery by standardizing the electronic data
exchange, protecting the privacy of health care information by setting
standards for privacy and security of individually identifiable info,
empowering patients with new rights related to their individual identifiable
health info
_____the amount of reflection of each surface of CR-39 lenses is approximately
_____ Right Ans - 4%
The absorption of light in lenses is classified by two variables. what are they?
Right Ans - tint, and lens transmission
The denser the tint in a lens, _____ Right Ans - less transmission of light
through the lens
Which is a correct statement concerning light waves that are less than 20 feet
from their source? Right Ans - they are considered diverging
What is the range of visible wavelengths the human eye is sensitive to ?
Right Ans - 380-760nm
Which of the following occurs to the greatest degree when light encounters a
lens surface? Right Ans - transmitted
How much light does a 1.49 index lens reflect? Right Ans - 8.1%
On what optical characteristic are AR treatments based upon? Right Ans -
destructive interference
Which type of glare does AR treatment eliminate? Right Ans - distracting
What type(s) of UV radiation cause sunburn? Right Ans - UVA and UVB
Standard transmission in sunlenses should range between _____ Right Ans -
15% and 30%
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