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Clinical Refraction > Basic Optics > Flashcards

Basic Optics Flashcards

1
Q

The ultimate source of light

A

The sun

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2
Q

A branch of science concerned with the study of light

A

Optics

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3
Q

Optics shows the properties of light as it acts upon by?

A

Optical systems

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4
Q

Branches of Optics

A

Geometrical Optics
Physical or Wavefront Optics
Quantum Optics

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5
Q

A phase of optics which treats of the formation of images by light rays

A

Geometric optics

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6
Q

It includes the study of the influence of plane and spherical mirrors, plane and spherical refractors, thick and thin lenses, prisms, and optical systems upon light

A

Geometric optics

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7
Q

Uses line diagrams to depict the behavior of light

A

Geometric optics

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8
Q

The fundamental laws of geometric optics

A

Law of Rectilinear Propagation
Law of Reflection
Law of Refraction

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9
Q

Uses principles of waves to describe the behavior of light

A

Physical or Wavefront Optics

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10
Q

Involves primarily in theory of waves

A

Physical or Wavefront Optics

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11
Q

Theory of Waves

A

Reflection
Refraction
Absorption
Dispersion

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12
Q

Deals with the interaction of light with the atomic entities of matter and methods of quantum mechanics

A

Quantum optics

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13
Q

Deals with the clinical application of optics in refraction, instrumentation, and dispensing

A

Applied optics

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14
Q

Applied optics deals with the clinical application of optics in?

A

Refraction
Instrumentation
Dispensing

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15
Q

Designed to provide students with the necessary expertise in handling the different types of ophthalmic clinical instruments

A

Applied Optics

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16
Q

Relevance of each test in coordination with the use and manipulation of the different ophthalmic instruments in he routinary clinical eye examination is given emphasis

A

Applied Optics

17
Q

Light coming from a point source

A

Divergent

18
Q

Light rays travelling parallel have?

A

Zero vergence

19
Q

Light that focus on a point

A

Convergent

20
Q

The closer the light to its source, the (greater, lesser) the vergence

A

greater

21
Q

The farther the light is from its source, the (higher, lower) the vergence

A

lower

22
Q

The vergence approaches zero as vergence goes toward?

A

Infinity

23
Q

Unit of measurement of vergence

A

Diopter

24
Q

Refracting power of light bending capacity of the lens

A

Diopter

25
Q

Formula for diopter

A

D = 1/f

26
Q

What is the numerator if f is in inches?

A

40

27
Q

What is the numerator if the f is in cm?

A

100

28
Q

What is the numerator if the f is in mm?

A

1000

29
Q

Diverging light has a ______ power

A

minus (-)

30
Q

Converging light has a _____ power

A

plus (+)

31
Q

Minus lenses are (convergent, divergent)

A

Divergent

32
Q

Plus lenses are (convergent, divergent)

A

Convergent

Clinical Refraction (4 decks)

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