Master Visual Field Defects - Left Lower Quadrantic Anopia with Picmonic for Medicine

With Picmonic, facts become pictures. We've taken what the science shows - image mnemonics work - but we've boosted the effectiveness by building and associating memorable characters, interesting audio stories, and built-in quizzing.

Visual Field Defects - Left Lower Quadrantic Anopia

Defective Visual Field with Left Lower Quadrant Nope-eye
Picmonic
Left lower quadrantic anopia is a loss of vision in the same fourth of each eye. The visual loss is in the inferior portion of the eye, giving a “pie on the floor” appearance. A lesion of the right dorsal optic radiation, part of the optic tract in the parietal lobe, leads to vision loss in the contralateral inferior fourths of each eye. An infarct of the middle cerebral artery which supplies the optic radiation leads to their ischemia and consequently the lower quadrantic anopia visual defect.
5 KEY FACTS
VISUAL FIELD ABNORMALITY
Left Lower Quadrantic Anopia
Left Lower Quadrant Nope-eye

This anopia consists of partial vision loss in both eyes.

Pie on the Floor
pizza Pie on Floor

A quarter of the same visual field is lost in the inferior portion of each eye, giving the appears of a slice of “pie on the floor.”

LOCATION OF LESION
Dorsal Optic Radiation
Radioactive Dorsal-fin

This is the dorsal part of the pathway that carries information to the primary visual cortex on the shortest pathway via the internal capsule. Lesion of these fibers on the right side of the brain leads to loss of vision in the left lower quarters of both eyes.

Parietal Lobe
Pirate

The dorsal optic radiation is housed in the parietal lobe. Lesion of the optic radiation on one side of the brain leads to contralateral lower quadrantic anopia.

CAUSES
Middle Cerebral Artery (MCA) Infarct
Metal Brain with Clogged middle artery

Inferior branch of the middle cerebral artery supplies the optic radiations. An infarct of the MCA would cause ischemia in the areas which it supplies. A lack of blood supply to the right dorsal optic radiation would cause a lesion in this pathway, leading to left lower quadrantic anopia.

Unlock all 5 facts & definitions with Picmonic Free!

JOIN FREE

Take the Visual Field Defects - Left Lower Quadrantic Anopia Quiz

Picmonic's rapid review multiple-choice quiz allows you to assess your knowledge.

START QUIZ NOW

It's worth every penny

Our Story Mnemonics Increase Mastery and Retention

Memorize facts with phonetic mnemonics

Unforgettable characters with concise but impactful videos (2-4 min each)

Ace Your Medical (MD/DO) Classes & Exams with Picmonic:

Over 870,000 students use Picmonic’s picture mnemonics to improve knowledge, retention, and exam performance.

Choose the #1 Medical (MD/DO) student study app.

Picmonic for Medicine (MD/DO) covers information that is relevant to your entire Medical (MD/DO) education. Whether you’re studying for your classes or getting ready to conquer the USMLE Step 1, USMLE Step 2 CK, COMLEX Level 1, or COMLEX Level 2, we’re here to help.

Works better than traditional Medical (MD/DO) flashcards.

Research shows that students who use Picmonic see a 331% improvement in memory retention and a 50% improvement in test scores.