Perimetry

Perimetry, also known as visual field testing, is a diagnostic procedure that measures the full extent of a patient's peripheral (side) vision. It is a critical tool for detecting, monitoring, and managing a range of eye and neurological conditions. At FURIA'S EYE CLINIC, we use automated perimetry to provide accurate and reliable visual field assessments.

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What is Perimetry?

Perimetry maps the complete field of vision — both central and peripheral — to identify any areas of reduced sensitivity or vision loss (scotomas). The test is performed one eye at a time and generates a detailed map of visual function across the entire visual field.

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Conditions Detected and Monitored by Perimetry

• Glaucoma — detecting and tracking peripheral vision loss caused by optic nerve damage
• Retinal diseases — mapping areas of retinal damage or dysfunction
• Optic nerve disorders — assessing optic neuritis and other optic nerve conditions
• Neurological conditions — detecting visual field defects caused by brain tumors, strokes, or other neurological disorders
• Macular degeneration — monitoring central visual field changes
• Pituitary gland tumors — causing characteristic bitemporal field loss

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How is Perimetry Performed?

Automated perimetry is a simple, non-invasive test. The patient sits in front of a perimeter bowl and presses a button each time they see a light stimulus appear. The test evaluates the sensitivity of vision across the entire visual field.

Steps of the Test

• One eye is tested at a time; the other is covered
• The patient fixates on a central target
• Lights of varying brightness appear at different locations
• The patient responds each time a light is detected
• A computer generates a detailed visual field map
• Results are compared with normal values to identify abnormalities

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Types of Perimetry

• Automated Static Perimetry — the gold standard for glaucoma monitoring
• Kinetic Perimetry — maps the outer boundary of the visual field
• Frequency Doubling Technology (FDT) — quick screening perimetry

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Importance of Regular Visual Field Testing

• Early detection of vision loss before symptoms appear
• Essential for monitoring glaucoma progression
• Guides treatment adjustments in glaucoma management
• Detects neurological conditions affecting vision
• Medicolegal requirements for driving fitness assessments

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Why Choose FURIA'S EYE CLINIC?

• Advanced automated perimetry for accurate results
• Expert interpretation by experienced ophthalmologists
• Integrated with comprehensive eye examination
• Reliable monitoring for long-term glaucoma management
• Patient-friendly, comfortable testing environment