Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Primary Eye and Vision Care > Anisometropia and Aniseikonia > Flashcards

Anisometropia and Aniseikonia Flashcards

(54 cards)

Start Studying
1
Q

It is a binocular condition, that the image in one
eye is perceived as different in size compared to
the image in the other eye.

A

Aniseikonia

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

Discussed the possibility (1903)

A

C. Hess

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

Designed iseikonic lenses for aniseikonia

A

Von Rohr

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

Commented upon the probability of unequal

image sizes. (1864)

A

Donders

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

Lenses which correct aniseikonia and include also

the correction of refractive error.

A

Iseikonic Lenses

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

Condition in which the size and shape of the

ocular images are equal

A

Iseikonia

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

Condition in which ocular images are unequal in

size and shape

A

Aniseikonia

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

Type of Aniseikonia that the eyes are gazing in a certain direction

A

Static Aniseikonia

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

Type of Aniseikonia that the eyes have to rotate a different amount to gaze at the same point in space
or it is anisophoria (optically induced)

A

Dynamic Aniseikonia

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

the size of one ocular image is

symmetrically larger that the other.

A

Symmetrical Overall

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q 
the size of one ocular image is
symmetrically larger that the other in one
meridian only
Axis 90
Axis 180
Axis oblique
A

Symmetrical Meridional

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

combination of overall and

meridional is manifested.

A

Symmetrical Compound

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

image distortion increases

progressively in both directions

A

Asymmetrical Pincushion

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

image distortion decreases progressively

in both directions

A

Asymmetrical Barrel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

image difference increases

progressively in one direction

A

Asymmetrical Prismatic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

image size remains the same but there

occurs an oblique distortion of shape.

A

Asymmetrical Oblique

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Variation in size differ from different positions of

the visual field

A

Asymmetrical

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

asymmetric convergence and stereoscopic disparities exists as when viewing the object located to one side.

A

Normal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

i. Pincushion or Barrel

ii. Ever increasing magnification towards the apex of a prism.

A

Abnormal Asymmetric

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

i. Overall
ii. Meridional
iii. Compound

A

Abnormal Symmetric

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Testing of Aniseikonia based on binocular space perception

A

Space Eiknometric Method

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Testing of Aniseikonia based on directly comparing perceived image sizes between the two eyes

Study These Flashcards
A

Direct Comparison Method

23
Q

instrument for measuring aniseikonia.

Study These Flashcards
A

Space Eikonometer

24
Q

3 commercially available direct comparison

tests

Study These Flashcards
A
  1. New Aniseikonia Test (Awaya Test)
  2. Basic Aniseikonia Test (version 1)
  3. Aniseikonia Inspector (version 3)
25
provides a manual method to detect and calibrate the Aniseikonic condition.
New Aniseikonia Test (Awaya Test)
26
is an easy-to-use Windows software program to | test the aniseikonia of a patient.
Basic Aniseikonia Test (Version 1)
27
is a Windows software program for the clinical | management of aniseikonia.
Aniseikonia Inspector (Version 3)
28
Give atleast 3 symptoms of Aniseikonia
``` Headache asthenopia Photophobia Reading Difficulty Nausea Nervousness ```
29
Give atleast 4 optical correction/solution
Contact lens Glasses Good VA Glasses Compromised Contact Glasses-Combination
30
a condition in which the refractive status of one eye differs from that the other.
Anisometropia
31
The condition in which the | refractive status is equal in the two eyes.
Isometropia
32
A form of anisometropia in which one eye is myopic and the otherhyperopic.
Antimetropia
33
Anisometropia or
Asymmetropia
34
Anisometropia is generally classified into three, what are those
By Type By Degree By Etiology
35
A type of Anisometropia that has different amount of the same error of refraction.
Anisometropia
36
A type of Anisometropia that has different type of errors | such as hyperopia vs. myopia or spherical vs. astigmatic.
Antimetropia
37
A degree of Anisometropia that its differences in error totalling no more than 2.00 D.
Low
38
An etiology of anisometropia that occurs because of differential growth of the eyeball of both eyes. It is hereditary in origin.
Congenital Anisometropia
39
An etiology of anisometropia that is created by trauma, pathology or the results of systemic changes.
Acquired Anisometropia
40
A classification of anisometropia that is a condition in which the refractive power of the two eyes is unequal.
Absolute Anisometropia
41
A classification of anisometropia that is that type of refractive anomaly in which although the total refraction of the two eyes is equal, the component elements in each show relatively large differences.
Relative Anisometropia
42
Type of absolute anisometropia that is one eye is normal and the other is either hypermetropic or myopic.
Simple
43
Type of absolute anisometropia that is both eyes are ametropic either hyperopic or myopic, but one eye has a higher refractive error.
Compound
44
Type of absolute anisometropia that both eyes are ametropic. One eye is hyperopic and the other is myopic. This is called antimetropia.
Mixed
45
Type of absolute anisometropia when one eye is normal and the other has either myopic or hyperopic astigmatism.
Simple Astigmatic Anisometropia
46
Type of absolute anisometropia when both eyes are astigmatic but of unequal degree.
Compound Astigmatic Anisometropia
47
If there is a difference of more than 5D between the two eyes, the patient loses binocularity.
Binocular Vision
48
If the anisometropia is high and the eyes have a | good visual acuity,
Alternating Vision
49
If the defect in one eye is high and if its visual | acuity is not good,
Amblyopia
50
A concomitant convergent squint occurs in children with the eye having the defect becoming convergent.
Strabismus
51
Tue or False Anisometropia is not a serious concern | in newborns and young children
False
52
Give atlest 3 symptoms of anisometropia
``` Amblyopia Strabismus Diplopia Eye Strain Headaches Sheer Tiredness ```
53
Tests for Anisometropia
Worth 4 light/dot Test LEA Vision Test System (amblyopia) Screening Test
54
Optical Management for Anisometropia
Spectacles | Contact Lenses

Primary Eye and Vision Care (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions