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Motility > Neuromuscular Abnormalities > Flashcards

Neuromuscular Abnormalities Flashcards

1
Q

Phoria

A

eyes deviate when fusion is broken

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2
Q

Tropia

A

manifest deviation of the eyes

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3
Q

Unilateral Tropia

A

patient fixates with one eye

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4
Q

Constant Tropia

A

fusion is not enough to keep eyes aligned

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5
Q

Intermittent Tropia

A

fusion functions at times, but not always

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6
Q

Norms for CT

A

Distance 1 XP (+/- 2)

Near 3 XP (+/- 3)

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7
Q

Neutralizing Exo

A

Base In

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8
Q

Neutralizing Eso

A

Base Out

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9
Q

Neutralizing Hyper

A

Base Down

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10
Q

Neutralizing Hypo

A

Base Up

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11
Q

Splitting Vertical Prism

A

absolute sum of prism
keep same base
OD 4BU / OS 3 BD = 7 OD BU or 7 OS BD

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12
Q

Splitting Horizontal Prism

A

keep same base OU

8 BO = 4 BO OD / 4 BO OS

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13
Q

Torticollis

A

abnormal head position

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14
Q

Ocular Torticollis

A

compensatory response to ocular problems to maintain binocularity and improve VAs

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15
Q

Abnormalities that cause Ocular Torticollis

A 
nystagmus
strabismus
supranuclear disorders
monocular blindness/ ptosis
refractive error
visual field defect
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16
Q

Comitant

A

deviation size remains same or within 5pd in all positions of gaze
no muscles are over or underacting

17
Q

Non-Comitant

A

deviations different in different positions of gaze

over or under action of one or more muscles

18
Q

Congenital/ Acquired Strabismus Timeline

A

before/ after 6 months

19
Q

Congenital History

A

uncertain onset

intermittent diplopia or asymptomatic

20
Q

Aquired History

A

exact time of onset is known

21
Q

Congenital Head Posture

A

family is unaware of abnormal posture

22
Q

Acquire Head Posture

A

patient is aware of posturing

23
Q

Congenital Comitancy

A

appears comitant because of developed muscle sequalea

24
Q

Acquired Comitancy

A

over action of yoked muscle seen

25
Q

Paralysis

A

action of muscle is completely

26
Q

Paresis

A

action of muscle is impaired

27
Q

Palsy

A

general term of paresis/ paralysis

28
Q

Neurogenic Deviation

A

apparent deviation in primary gaze

29
Q

Mechanical Deviation

A

little/ no deviation in primary gaze

30
Q

Neurogenic Diplopia

A

same in different gazes

31
Q

Mechanical Diplopia

A

opposite to gaze

32
Q

Neurogenic Ocular Movement

A

greater movements on ductions than versions

33
Q

Mechanical Ocular Movement

A

duction and version movement equally limited

34
Q

Neurogenic Hess Lancaster

A

field of affected eye is smaller and displaced equal to deviation

35
Q

Mechanical Hess Lancaster

A

fields are irregular and close to each other

36
Q

Limits phoria symptoms

A

sensorimotor system

37
Q

Deviations more likely to cause symptoms

A

vertical deviations

38
Q

Poor fusion is associated with……

A 
fatigue
asthenopia
headaches
diplopia
suppression
avoidance

Motility (9 decks)

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