MIDTERM

Question 1

It is the line that connects visual thresholds

Answer 1

Isopter

Question 2

It uses a black-felt background

Answer 2

Tangent screen

Question 3

It has a semi-black stitching

Answer 3

Tangent screen

Question 4

T/F
Test target is the white button at the center

Answer 4

T

Question 5

T/F
Test object is the white button at the center of the screen

Answer 5

F- objects placed at the tip of wand

Question 6

Advantages of tangent screen

Answer 6

More sensitive than confrontation test or FCVF

Provides accurate charting of central and paracentral VF defects

Useful in testing patient with hysterical fields

Question 7

If you are checking the right eye, the location of the blindspot is at

Answer 7

Right

Question 8

If you are checking the left eye, the location of the blindspot is at

Answer 8

Left

Question 9

Purpose of tangent screen

Answer 9

To assess the integrity of the central 30 degrees (radius) of the patient’s field of vision

Question 10

Equipment use in tangent screen

Answer 10

• Tangent screen

• Thirty to fifty 1 to 2 mm diameter nonglossy, short black pins

• Test target (1, 2, 3 or 5 mm diameter white test object attached to a black non glossy wand)

• Eye patch

• Tangent screen should be a flat, non reflective, black screen usually made of cloth, with a small white object attached to the center of the screen to serve as a fixation target. On most tangent screens, the fixation target is surrounded by concentric circles, stitched into the surface of the screen at intervals of 5 degrees when viewed from 1 meter

Question 11

Extent of Binocular visual field

Answer 11

180 degrees

Question 12

Extent of common bino field

Answer 12

120

Question 13

Extent of monocular field

Answer 13

150

Question 14

Extent of temporal crescent

Answer 14

30 degrees

Question 15

Extent of VF nasally

Answer 15

60

Question 16

Extent of VF superiorly

Answer 16

55-60

Question 17

Extent of VF inferiorly

Answer 17

70

Question 18

Extent of VF temporally

Answer 18

90-100

Question 19

The shape of a monocular VF

Answer 19

Horizontal oval

Question 20

Eye position of relative VF

Answer 20

Fixed

Question 21

Head position of relative VF

Answer 21

Steady

Question 22

Paraorbital structures of relative VF

Answer 22

Limited

Question 23

Eye position of absolute VF

Answer 23

Fixed

Question 24

Head position of absolute VF

Answer 24

Moving

Question 25

Paraorbital structures of absolute VF

Answer 25

Not limited to

Question 26

Highest area of sensitivity of an island

Answer 26

Peak of an island

Question 27

Highest area of sensitivity of hill of vision

Answer 27

Peak of the hill

Question 28

Blind area of an islamd

Answer 28

Bottomless pit

Question 29

Blind area of hill of vision

Answer 29

Beyond the borders of the hill

Question 30

Presentation of stimulus/target of known size and intensity outside the borders of VF or within blindspot

Answer 30

Kinetic peri

Question 31

It is the science of measuring visual field

Answer 31

Perimetry

Question 32

Target is being moved. From the point of invisibility to point of visibility

Answer 32

Kinetic peri

Question 33

is useful to determine borders of larger or deeper visual field defects

Answer 33

Kinetic

Question 34

s better at detecting small scotomas (e.g. early glaucomatous VF change)

Answer 34

Static peri

Question 35

In TS, the center refers to the peak of the island/hill or also called the

Answer 35

Point of fixation

Question 36

T/F In TS, when you move the wand away from the center, what happens in the island/hill is that it also goes down. So when it goes down away from the peak, px’s sensitivity to the target also decreases.

Answer 36

T

Question 37

T/F In TS, when you place the wand outside the borders/extent, px cannot detect it because it is already beyond his visual field

Question 38

Test target of tangent

Answer 38

White button

Question 39

To screen for previously unnoted visual field defects.

Answer 39

Confrontation test

Question 40

Should be arranged concentrically

Answer 40

Interlacing

Question 41

more on the temporal than nasal with soft isometric lines with smooth progression

Answer 41

Accordion field

Question 42

The technique is generally effective only for substantial field losses.

Answer 42

FCVF

Question 43

Colorless → gray →

Answer 43

Blue

Question 44

Colorless → yellow → _______ → red

Answer 44

Terraccotta

Question 45

lines are bent away

Answer 45

Macropsia

Question 46

lines are bent towards each other

Answer 46

Micropsia

Question 47

Appearance: 2 diagonal linesintersect at center of the grid

Answer 47

Chart 2

Question 48

Used for patient with a central scotoma that cannot fixate the central dot

Answer 48

Chart 2

Question 49

Appearance: similar to the first but squares are red

Answer 49

Chart 3

Question 50

Useful for patients with suspected central or cecocentral scotomas

Answer 50

Chart 3

Question 51

common in cases of patients who were held captive in war and are malnourished.

Answer 51

Nutritional ambly

Question 52

Appearance: Composed of smallwhite dots (no lines) on a black background

Answer 52

Chart 4

Question 53

Purpose: Indicated for patients with one or more paracentral scotoma making it easier to delineate the affected areas.

Answer 53

Chart 4

Question 54

Appearance: Chart consists of 20white horizontal lines evenly spaced by 5 mm on a black background

Answer 54

Chart 5

Question 55

to facilitate the identification of "oriented" metamorphopsia which primarily affects lines going in one direction

Answer 55

Chart 5

Question 56

Appearance - Similar to 5th chart except its made of black lines on a white background

Answer 56

Chart 6

Question 57

Chart is meant to facilitate the observation of metamorphopsia along the reading area

Answer 57

Chart 6

Question 58

Smaller grid is intended to facilitate detection of subtle visual disturbances in the macular area

Answer 58

Chart 7

Question 59

Useful for high myopic patients (who held at the punctum remotum of the uncorrected eye)

Answer 59

Chart 7