Binocular Vision Essentials and Prerequisites
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Questions and Answers

What does 'binocular vision' refer to?

  • Using one eye to produce a single mental image
  • Coordination of both eyes to produce a single mental image (correct)
  • Closing one eye to help focus the other
  • Using two eyes separately for different tasks

Which of the following is NOT a prerequisite for binocular vision?

  • Foveal region stimulated
  • Corresponding points
  • Temporal placement of eyes (correct)
  • Partial decussation of ON fibers

What is the advantage of having binocular vision according to the text?

  • Higher risk of serious handicap in case of losing one eye
  • Better discrimination of object details and contours (correct)
  • Reduced field of vision
  • Increased likelihood of developing myopia

At what age does the fusional mechanism become fully developed according to the text?

<p>1 ½ years old (D)</p> Signup and view all the answers

What is the significance of aniseikonia in relation to binocular vision?

<p>Leads to unequal retinal images between the two eyes (A)</p> Signup and view all the answers

Which term describes the condition where one eye has optical defects but they are less obvious due to the normal image from the other eye?

<p>Iseikonia (A)</p> Signup and view all the answers

What is the primary advantage of binocular vision mentioned in the text?

<p>Single vision (A)</p> Signup and view all the answers

Which of the following terms describes a condition where the eyes have different refractive powers?

<p>Anisometropia (C)</p> Signup and view all the answers

At what age is a child's visual acuity expected to reach 20/20 according to the text?

<p>3 years old (D)</p> Signup and view all the answers

Which of the following is NOT listed as a prerequisite for binocular vision in the text?

<p>Equal refractive power in both eyes (C)</p> Signup and view all the answers

At what age does the text state that the eyes are expected to be straight?

<p>3-4 months old (C)</p> Signup and view all the answers

Which of the following terms describes a condition where the eyes have different visual axes?

<p>Antimetropia (D)</p> Signup and view all the answers

Flashcards

Binocular Vision

Coordination of both eyes to produce a single mental image.

Binocular Vision Prerequisite (NOT)

Temporal placement of eyes is NOT a prerequisite

Advantage of Binocular Vision

Enhanced ability to discriminate object details and contours.

Fusional Development Age

The ability to fuse images from both eyes develops fully around 1 ½ years old.

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Aniseikonia

A condition causing unequal retinal images between the two eyes.

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Iseikonia

Optical defects in one eye are masked by the normal image from the other eye.

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Primary Advantage of Binocular Vision

The ability to perceive a single, unified image despite having two eyes.

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Anisometropia

A condition where the eyes have different refractive powers.

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20/20 Vision Age

Visual acuity is expected to reach 20/20 around 3 years old.

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Binocular Vision Prerequisite (NOT)

Equal refractive power in both eyes is NOT crucial

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Eyes Straight (Age)

Eyes are expected to be straight around 3-4 months old.

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Antimetropia

A condition where the eyes have different visual axes.

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