Vision Screening

Question 1

most important measure of functional pathway

Answer 1

Visual acuity

Question 2

Visual acuity is a measure of

Answer 2

functional pathway/ visual integrity

Question 3

importance of visual acuity

Answer 3

report level of preservation or degradation and detect amblyopia and monitor the effectiveness of treatment

Question 4

impairment of vision not due to organic damage or refractive errors

Answer 4

amblyopia

Question 5

Child born with 20/100 vision (high refractive error) mut be treated within

Answer 5

7 years

Question 6

Baby with congenital cataracts needs to be operated within

Answer 6

3 months

Question 7

congenital cataract if not treated will lead to

Answer 7

irreversible amblyopia

Question 8

congenital misalignments must be corrected within

Answer 8

2 years

Question 9

congenital misalignment if not treated, will lead to

Answer 9

underdevelopment of stereopsis

Question 10

disorders that may be brought about by use of steroids

Answer 10

retinal/optic disorders

Question 11

intracranial hypertension may cause

Answer 11

papilledema

Question 12

Types of Visual acuity

Answer 12

1. recognition acuity

2. resolution acuity

Question 13

most common measure of spatial vision and involve the resolution of featural differences in familiar
targets.

Answer 13

Recognition acuity

Question 14

Detection of a target having two or more parts

Answer 14

Resolution acuity

Question 15

(alternating black and white stripes

Answer 15

grating

Question 16

Uses the alternating segments of black and white
stripes which must be presented to the patient to
determine their fixation preference in such patterns

Answer 16

Resolution acuity

Question 17

A rhythmic jerk nystagmus occurring when one is

looking at constantly moving objects.

Answer 17

OPTOKINETIC NYSTAGMUS

Question 18

small rapid jerky movement of the eye esp. as it
jumps from fixation on one point to another (as in
reading); can move from one visual stimuli to another

Answer 18

SACCADE

Question 19

The adjustment of the eye for various distances
whereby it is able to focus the image of an object on the
retina by changing the curvature of the lens. The ability
of the eye to accommodate decreases with age.

Answer 19

3. ACCOMMODATION

Question 20

Tests vision of one eye; foveal fixation and quality

Answer 20

MONONUCLEAR FIXATION TESTING

Question 21

Foveal fixation involves fixation using

Answer 21

macula

Question 22

Fixation Preference Test; tests presence of amblyopia

Answer 22

binocular fixation

Question 23

what is herring’s law

Answer 23

where one eye goes, the other eye

follows. Both eyes will elevate if the left eye is fixing

Question 24

involuntary pursuit response to moving

stripes filling up most of the visual field

Answer 24

OKN (Optokinetic nystagmus)

Question 25

types of fixation testing

Answer 25

mononuclear fixation
binocular fixation
OKN
Forced choice preferential looking
visual evoked response

Question 26

Confirmatory test for suspected cortically-blind patients

Answer 26

VISUAL EVOKED RESPONSE (VER)

Question 27

VER measures the

Answer 27

summed occipital cortical response to

pattern stimulus

Question 28

Visual acuity assessment for verbal (preliterate) children

Answer 28

allen picture cards
HOTV test
Lea symbols
Landolt rings
tumbling E test

Question 29

Visual acuity assessment for verbal (literate) children

Answer 29

Snellen chart

Question 30

HOTV letters are chosen because

Answer 30

they don’t have laterality and are easily recognizable

Question 31

figures included in lea symbols

Answer 31

apple square and circle

Question 32

Discontinuous circles (letter Cs

Answer 32

Landolt rings

Question 33

Low vision tests

Answer 33

count fingers
hand motion
light perception
total blindness