Neuroanatomy Draw It To Know It

22. Vision 399

Optic nerve

(1)

Post-

chiasm(4)

Optic chiasm (3)

Left eye Right eye

Left visual field Right visual field

Primary

visual

cortex (7)

Lateral

geniculate

nucleus

VISUAL FIELDS

LEFT EYE RIGHT EYE

Optic

nerve

Post

chiasm

Superior

radiation

Inferior

radiation

Anterior

junction

Superior radiation (5)

Inferior

radiation (6)

Primary

visual

cortex

Meyer’s

loop

Optic

chiasm

Retina (8)

Lateral

chiasm (2)

1.

2.

3.

4.

5.

6.

7.

9.

8. Retina

Lateral

chiasm

Central vision Left Right Left Right

Tmprl Nsl NslTmprl

Anterior

junction

(9)

Wilbrand’s knee

(inferonasal

fibers)

DRAWING 22-9 Visual Field Defi cits — Complete