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The Optician Training Manual Test: Chapter 1 Questions and Answers
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The Optician Training Manual Test: Chapter 1 Questions and Answers What is the purpose of the cornea? The cornea provides a clear window into the eye to allow images to pass through the image processing tissue, the retina. What is the purpose of the optic nerve? The Optic nerve is the inf...

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  • September 1, 2024
  • 1
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • the optician training manual test chapter 1 quest
  • what is the purpose of the cornea the cornea prov
  • what is the purpose of the optic nerve the optic

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The Optician Training Manual Test:
Chapter 1 Questions and Answers
What is the purpose of the cornea? - answer The cornea provides a clear window
into the eye to allow images to pass through the image processing tissue, the retina.

What is the purpose of the optic nerve? - answer The Optic nerve is the information
superhighway of the eye. It transmits the information the retina collects and sends it to
the brain for processing.

What are the two conditions that must be met in order for an image to be seen? -
answer 1: The image is brought to a point of focus (the lens of the eye or a camera is
responsible for this)
2:The image is brought to focus on a surface capable of capturing the image in a form
that is either saved (as on the film of a camera) or instantly processed (as the retina of
the eye does).

What is the focal length of a lens with a power of +4.00? - answer 4=1/d, 0.25 m or
25 cm.

What is the name of the structure in the eye that is capable of flexing in order to bring
images into focus? - answer The lens

Ghosting is a common symptom of what refractive error? - answer Astigmatism

If a person complains of blurriness when looking at the television but sees well when
reading, the most likely diagnosis would be what? - answer Myopia

What power lens (+or-) does someone who is hyperopic require? - answer Plus
Power Lens

Convert the prescription -4.00 +1.00 x 090 into MINUS cylinder form. - answer -3.00
-1.00 x 180

A visual acuity of 20/100 is how much worse than 20/20? - answer five times worse.

Do glasses ever magnify? - answer No

Name two types of lenses that have three separate powers: one for distance vision, one
for intermediate vision, and one for near vision. - answer Trifocals and progressives

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