Disorders of the Visual Pathway

Lesions of the visual pathway may be classified according to three main locations.

1. Prechiasmal lesions (lesions of the optic nerve) involve visual field defects on the same side.

2. Chiasmal lesions (disorders of the optic chiasm) typically cause bilateral temporal hemianopsia but can also cause unilateral or bilateral visual field defects (see below).

3. Retrochiasmal lesions (disorders of visual pathway posterior to the optic chiasm, i.e., from the optic tract to the visual cortex) cause homonymous visual field defects.

Stretch Marks

Stretch Marks

Stretch Marks Prevention and Treatment. Learn What Exactly Are Stretch Marks And How Can They Be Treated. MP3 Audio included for your PC or IPod.

Get My Free Ebook and Audio


Post a comment