**Perimetry**, commonly known as the **Visual Field Test**, is a non-invasive diagnostic procedure that precisely measures the full extent of your peripheral and central vision. It is essential for detecting vision loss that may not be apparent in standard eye charts.
This test is the **gold standard** for diagnosing and tracking damage from **Glaucoma**, which typically causes progressive, irreversible loss of peripheral vision. It is also critical for evaluating visual loss due to neurological issues like stroke, tumors, or damage to the optic nerve.
Detects and quantifies the extent of peripheral vision loss caused by optic nerve damage from Glaucoma.
Identifies patterns of vision loss resulting from strokes, brain tumors, or other neurological pathways affecting sight.
Utilizes modern automated perimetry (like the Humphrey Field Analyzer) for objective and repeatable results.
Allows doctors to track changes over time, ensuring treatment is adjusted to halt further visual field deterioration.
You will be seated in front of a bowl-shaped instrument (perimeter) and asked to place your chin on a rest.
You must continuously look straight ahead at a fixed central target without moving your eye.
Random flashes of light will appear in different locations. You press a button only when you see a light flash.