#5 Flashcards

1
Q

False projection is absent

A

Comitant Squint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Diplopia is usually present

A

Incomitant Squint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Ocular movements are restricted

A

Incomitant Squint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Abnormal head posture is absent

A

Comitant Squint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Always commences in childhood

A

Esotropia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

More common in Caucasians

A

Esotropia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

In, unilateral squints of long standing, this eye may remain motionless or move only slightly

A

None of the choices (Eccentric fixation)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Vision is better if letters are presented in a row than in single letters

A

None of the choices (Crowding Phenomenon)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The px is asked to look in the direction in which movement is being tested and the maximum range noted. The eyeball is then held at the opposite limbus with a
toothed forceps and rotated maximally further in the same direction.

A

Forced Duction Test

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

To judge if the limitation of the full range of eye movement is purely paralytic or whether there is some physical restriction

A

Forced Duction Test

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The anaesthetized limbus is grasped with a forceps and a ‘tug’ is appreciated when the px ‘attempts’ to move the eye in the affected direction if the muscle is not paralysed but only ‘mechanically restricted’ in making the eye move

A

Force Generation Test

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Result that indicates restriction

A

Positive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Result that indicates paresis

A

Negative

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

In Hirschberg Test, what is the approximate magnitude of deviation if the reflex is at:
- pupil margin
- halfway between center of pupil and corneal margin
- halfway between pupil margin and corneal margin
- corneal margin

A
  • 15°
  • None of the choices (20° ana naa sa book) *some would say na ang ans here is 45PD idk why,wa sd ko kabasa ana hue
  • 30°
  • None of the choices(45°)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

TRUE/FALSE
- A constant deviation of > 10 deg exotropia warrants surgery

  • A constant deviation of > 25 deg exotropia warrants surgery
  • A constant deviation of > 5 PD hypertropia warrants surgery
  • A constant deviation of > 25 PD esotropia warrants surgery
  • Conservative therapy includes training prisms
A
  • False
  • False
  • False
  • False
  • True
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

TRUE/FALSE
Vertical deviations give the greatest discomfort of all

A

False (Cyclophoria)

17
Q

TRUE/FALSE
Exophoria with 5-10 PD of deviation usually has
asthenopia

A

False (5-10°)

18
Q

TRUE/FALSE
Converging power can be raised to 50 deg with training

A

True

19
Q

TRUE/FALSE
Diverging power should be 5PD

A

False (4-5°)

20
Q

TRUE/FALSE
Normal limits of super and subduction should be 1.5 to 2.5 deg

A

True

21
Q

Fully corrected by and add for near work

A

Non-Refractive

22
Q

Eso at D is greater than N

A

Refractive

23
Q

Eso at D = Eso at N

A

Non-accommodative

24
Q

Fully corrected by hyperopic correction for D

A

Refractive

25
Q

No change with refraction correction

A

Non-accommodative

26
Q

-Compensatory chin deppression
- Compensatory chin elevation
- Overaction of IO
- Weakness of SO

A
  • A exo (since V eso/A exo)
  • A eso (since V exo/A eso)
  • V pattern
  • V pattern
27
Q

Weakens the muscle without altering its attachment site

A

Marginal Myotomy

28
Q

Weakens the function by changing the attachment site of the muscle on the eyeball

A

Recession

29
Q

Strengthens the muscle by shortening the muscle and reattaching to its original position

A

Resection