PHYSIOLOGICAL OPTICS (RNH) > 2 PRIMER > Flashcards

2 PRIMER Flashcards

(38 cards)

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1
Q

.

A

.

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2
Q

LEAD OF ACCOMMODATION

Accommodative response is ________ the accommodative stimulus

  • less than
  • greater than
A

greater than

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3
Q

Under accommodative response of the eye, if it exceeds, it will fall in front of the retina and is termed as _____

  • LAG OF ACCOMMODATION
  • LEAD OF ACCOMMODATION
A

LEAD OF ACCOMMODATION

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4
Q

Image plane in the eye which represents the extension of the brain

  • Cornea
  • Retina
A

Retina

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5
Q

Location of the eye that receives all the necessary information

  • Cornea
  • Retina
A

Retina

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6
Q

FACTORS THAT INFLUENCE REFRACTIVE STATUS

  • Length of the eyeball
  • Power of the cornea
  • Power of the lens
  • Depth of anterior chamber
  • None of the above
  • All of the above
  • All of the above except: ____
A

All of the above

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7
Q

Posterior principal point is focused on the retina with accommodation relaxed

  • EMMETROPIA
  • AMETROPIA
A

EMMETROPIA

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8
Q

Variation from emmetropia (ERROR OF REFRACTION)

  • EMMETROPIA
  • AMETROPIA
A

AMETROPIA

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9
Q

Posterior principal point is focused in front or behind the retina with accommodation relaxed

  • EMMETROPIA
  • AMETROPIA
A

AMETROPIA

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10
Q

WHERE IS THE POINT OF FOCUS IN THE RETINA IF THE ACCOMMODATION IS RELAXED AND ACTIVE (2 ANSWERS) UNDER EMMETROPIA AT FAR

  • exactly
  • in front
  • behind
A

EMMETROPIA AT FAR

RELAXED: exactly on the retina
ACTIVE: in front of the retina

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11
Q

WHERE IS THE POINT OF FOCUS IN THE RETINA IF THE ACCOMMODATION IS RELAXED AND ACTIVE (2 ANSWERS) UNDER EMMETROPIA AT NEAR

  • exactly
  • in front
  • behind
A

EMMETROPIA AT NEAR

RELAXED: behind the retina
ACTIVE: exactly on the retina

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12
Q

WHERE IS THE POINT OF FOCUS IN THE RETINA IF THE ACCOMMODATION IS RELAXED AND ACTIVE (2 ANSWERS) UNDER MYOPIA AT FAR

  • more in front
  • in front
  • behind
A

MYOPIA AT FAR

RELAXED: in front of the retina
ACTIVE: more in front of the retina

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13
Q

WHERE IS THE POINT OF FOCUS IN THE RETINA IF THE ACCOMMODATION IS RELAXED AND ACTIVE (2 ANSWERS) UNDER MYOPIA AT NEAR

  • exactly
  • in front
  • behind
A

MYOPIA AT NEAR

RELAXED: exactly on the retina
ACTIVE: in front of the retina

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14
Q

WHERE IS THE POINT OF FOCUS IN THE RETINA IF THE ACCOMMODATION IS RELAXED AND ACTIVE (2 ANSWERS) UNDER HYPEROPIA AT FAR

  • exactly
  • in front
  • behind
A

HYPEROPIA AT FAR

RELAXED: behind the retina
ACTIVE: exactly on the retina

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15
Q

WHERE IS THE POINT OF FOCUS IN THE RETINA IF THE ACCOMMODATION IS RELAXED AND ACTIVE (2 ANSWERS) UNDER HYPEROPIA AT NEAR

  • more behind
  • in front
  • behind
A

HYPEROPIA AT NEAR

RELAXED: more behind the retina
ACTIVE: behind the retina

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16
Q

Process wherein an incident ray of light strikes the eye and its transmission through the various transparent media

  • PHYSICAL PROCESS
  • THE PHOTO-CHEMICAL PROCESS
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A

PHYSICAL PROCESS

17
Q

Light –> transmission –> transparent media

  • PHYSICAL PROCESS
  • THE PHOTO-CHEMICAL PROCESS
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A

PHYSICAL PROCESS

18
Q

The transformation of a radiant energy at the neuro-epithelium of the retina into some other form of energy capable of stimulating the receptor cells

  • PHYSICAL PROCESS
  • THE PHOTO-CHEMICAL PROCESS
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A

THE PHOTO-CHEMICAL PROCESS

19
Q

Light–>retina–>other form of energy–>photoreceptors

  • PHYSICAL PROCESS
  • THE PHOTO-CHEMICAL PROCESS
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A

THE PHOTO-CHEMICAL PROCESS

20
Q

The generation of nerve impulse in the retina and its transmission by a chain of neuron to the central nervous system

  • THE PSYCHOLOGICAL PROCESS
  • THE NEURO-MUSCULAR PROCESS
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A

THE NEURO-MUSCULAR PROCESS

21
Q

This constitutes the real seeing

  • THE PSYCHOLOGICAL PROCESS
  • THE NEURO-MUSCULAR PROCESS
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A

THE PSYCHOLOGICAL PROCESS

22
Q

The Interpretation of the stimulus received by the retina

  • THE PSYCHOLOGICAL PROCESS
  • THE NEURO-MUSCULAR PROCESS
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A

THE PSYCHOLOGICAL PROCESS

23
Q

The visual reaction of the brain

  • THE PSYCHOLOGICAL PROCESS
  • THE NEURO-MUSCULAR PROCESS
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A

THE PSYCHOLOGICAL PROCESS

24
Q

Thin transparent membrane where images are cast and where were nerve impulses are generated and conveyed to the optic nerve

  • retina
  • optic radiations
25
Nerve of sight * OPTIC NERVE * OPTIC CHIASMA
OPTIC NERVE
26
functions to unite the brain and the retina * OPTIC NERVE * OPTIC CHIASMA
OPTIC NERVE
27
Non-decussating, uncrossed, external/lateral fibers located at temporal half * OPTIC NERVE * OPTIC CHIASMA
OPTIC CHIASMA
28
Decussating, crossed, Internal/medial fibere located at nasal half * OPTIC NERVE * OPTIC CHIASMA
OPTIC CHIASMA
29
under optic chiasma, Non-decussating, uncrossed, external/lateral fibers located at _____ half * temporal * nasal
temporal
30
under optic chiasma, Decussating, crossed, Internal/medial fibere located at _____ half * temporal * nasal
nasal
31
Posterior continuation of optic chiasma with its fibers terminating at lateral geniculate body * OPTIC TRACT * LGB * OPTIC RADIATION
OPTIC TRACT
32
Serves as the end station for some visual fibers * OPTIC TRACT * LGB * OPTIC RADIATION
LGB
33
Regarded as sub-cortical visual center of brain, serving as a relay station between retina and cortex * OPTIC TRACT * LGB * OPTIC RADIATION
LGB
34
carry visual impulse to area striata * OPTIC TRACT * LGB * OPTIC RADIATION
OPTIC RADIATION
35
AREA STRIATA * LGB * OPTIC RADIATION * BROADMAN AREA #17
BROADMAN AREA #17
36
Visual/optic center of the brain located at medial aspect of the occipital lobe * LGB * OPTIC RADIATION * BROADMAN AREA #17/AREA STRIATA
BROADMAN AREA #17/AREA STRIATA
37
True visual cortex (true receptive center of visual impressions) * LGB * OPTIC RADIATION * BROADMAN AREA #17/AREA STRIATA
BROADMAN AREA #17/AREA STRIATA
38
Any problems on the pathway is projected on the _____ side of the visual field * same * opposite
opposite
PHYSIOLOGICAL OPTICS (RNH)
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