Binocular Vision at University Of Huddersfield | Flashcards & Summaries

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Lernmaterialien für binocular vision an der University of Huddersfield

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for binocular vision to function both eyes need to be...

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both eyes need to be aligned

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what is heterophoria

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it is the relative deviation of the visual axis controlled by fusion mechanics 

ie the deviation of the visual axis isn't obvious

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objects outside panums fusion area are seen as 

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diplopic/ double

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objects straight ahead are imaged on the...

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fovea

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objects higher in real space are imaged 

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below the fovea

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what is dissociation and how can this be done 

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dissociation- removing/ interrupting binocularity 

1. using an occluder in the cover test

2. distortion in the Maddox rod test

3. selective screening in the Maddox ring test

4. prismatic dissociation

independent objects 

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objects located on the left in real space are imaged 

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on the right of the fovea 

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which test is used to measure the magnitude of the deviations

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the Maddox rod test

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limitations of Maddox rod

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1. poor control of accommodation

2. cannot differentiate between phoria and tropia

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limitations of maddox wing

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1. fixed distance 33cm

2. the print is relatively large so poor control of accommodation

3. can be awkward to use with trial frame 

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what is crossed diplopia? 

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when the right eye has exotropia the image which is straight ahead will be seen on the left by the right eye 

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what is the horopter?

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a line containing all the points in the visual field which fall on corresponding points on the retina producing binocular vision

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Beispielhafte Karteikarten für deinen binocular vision Kurs an der University of Huddersfield - von Kommilitonen auf StudySmarter erstellt!

Q:

for binocular vision to function both eyes need to be...

A:

both eyes need to be aligned

Q:

what is heterophoria

A:

it is the relative deviation of the visual axis controlled by fusion mechanics 

ie the deviation of the visual axis isn't obvious

Q:

objects outside panums fusion area are seen as 

A:

diplopic/ double

Q:

objects straight ahead are imaged on the...

A:

fovea

Q:

objects higher in real space are imaged 

A:

below the fovea

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Q:

what is dissociation and how can this be done 

A:

dissociation- removing/ interrupting binocularity 

1. using an occluder in the cover test

2. distortion in the Maddox rod test

3. selective screening in the Maddox ring test

4. prismatic dissociation

independent objects 

Q:

objects located on the left in real space are imaged 

A:

on the right of the fovea 

Q:

which test is used to measure the magnitude of the deviations

A:

the Maddox rod test

Q:

limitations of Maddox rod

A:

1. poor control of accommodation

2. cannot differentiate between phoria and tropia

Q:

limitations of maddox wing

A:

1. fixed distance 33cm

2. the print is relatively large so poor control of accommodation

3. can be awkward to use with trial frame 

Q:

what is crossed diplopia? 

A:

when the right eye has exotropia the image which is straight ahead will be seen on the left by the right eye 

Q:

what is the horopter?

A:

a line containing all the points in the visual field which fall on corresponding points on the retina producing binocular vision

binocular vision

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