Neuro-Biology of the Visual System: Disorders of the PNS

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the normal visual field of each eye measured in terms of degrees?

100° inferiorly, 60° superiorly, 75° nasally, and 60° temporally
60° inferiorly, 75° superiorly, 100° nasally, and 60° temporally
75° inferiorly, 60° superiorly, 60° nasally, and 100° temporally (correct)
75° inferiorly, 60° superiorly, 100° nasally, and 60° temporally

What is the definition of Visual Field?

That portion of space in which objects are seen by the non-fixating eye.
That portion of space in which objects are seen by the moving eye.
That portion of space in which objects are simultaneously visible to the steadily fixating eye. (correct)
That portion of space in which objects are simultaneously seen by both eyes.

What is Cortical Blindness?

Blindness due to damage to the entire visual cortex. (correct)
Blindness due to damage to the optic nerve.
Blindness due to damage to the visual pathway.
Blindness due to damage to the retina.

What is Hemianopia?

Blindness over half the field of vision in either left or right eye. (B) Signup and view all the answers

What is Macular Degeneration?

A progressive deterioration of a critical region of the retina called the macula. (D) Signup and view all the answers

What is Glaucoma?

A group of eye diseases characterized by damage to the optic nerve. (A) Signup and view all the answers

What is Retinitis Pigmentosa?

A group of inherited disorders that slowly lead to blindness due to abnormalities of the photoreceptors in the retina. (A) Signup and view all the answers