Visual Field Test (Perimetry)

This test evaluates your peripheral (side) vision to detect blind spots or vision loss that could indicate glaucoma, neurological conditions, or retinal disorders.

Why Test Peripheral Vision?

Your visual field encompasses everything you can see while looking straight ahead. Problems may indicate:

Glaucoma (gradual peripheral vision loss)
Stroke or brain tumors (sudden vision loss patterns)
Retinal conditions (detachments, retinitis pigmentosa)
Neurological disorders (optic neuritis, pituitary tumors)

Important: Peripheral vision loss often goes unnoticed because our brains compensate. Regular testing is crucial for early detection.

Interactive Visual Field Test

Try this simplified screening test (not a replacement for clinical perimetry):

1. Sit about 12 inches from your screen
2. Cover one eye
3. Stare at the center dot
4. Click the button when you see flashing lights
5. Don't move your eyes during the test

Your Test Results

Areas where you detected the stimulus:

Clinical Perimetry Methods

Professional tests provide more accurate results:

Automated Static Perimetry (Humphrey, Octopus):
Measures sensitivity at specific locations
Kinetic Perimetry (Goldmann):
Moves stimulus from non-seeing to seeing areas
Frequency Doubling Technology:
Special test for early glaucoma detection

Typical visual field test results show:

Normal: Full peripheral vision
Glaucoma pattern: Arcuate scotomas
Hemianopia: Half-field loss (stroke)
Concentric loss: Advanced retinal disease

Who Should Get Tested?

Regular visual field testing is recommended for:

Glaucoma patients (every 6-12 months)
People with unexplained vision problems
Those with neurological symptoms
Professional drivers (commercial licenses)
Anyone with risk factors for eye disease

Find a Testing Location Learn About Glaucoma

Note: This interactive test is for educational purposes only. It cannot diagnose conditions. Clinical perimetry requires specialized equipment and professional interpretation.

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