After crossing at the optic chiasm, which visual field information is carried by the right optic tract?

After crossing at the optic chiasm, which visual field information is carried by the right optic tract?

• A. The right visual field information from both eyes.
• B. The central vision from the left eye.
• C. Peripheral vision from the left eye.
• D. The left visual field information from both eyes.

Answer: (D)

Visual information is organized by the visual field, not by eye. At the optic chiasm, fibers from the nasal half of each retina cross to the opposite side, while the temporal fibers stay on the same side. This crossing means that the right optic tract ends up carrying information about the left half of the visual field from both eyes. So, what’s seen on the left side of the world projects through the right tract. The left optic tract would carry the right visual field information from both eyes.

Visual information is organized by the visual field, not by eye. At the optic chiasm, fibers from the nasal half of each retina cross to the opposite side, while the temporal fibers stay on the same side. This crossing means that the right optic tract ends up carrying information about the left half of the visual field from both eyes. So, what’s seen on the left side of the world projects through the right tract. The left optic tract would carry the right visual field information from both eyes.