Visual Field Testing
It is an eye examination that can detect dysfunction in central and peripheral vision which may be caused by various medical conditions such as glaucoma, stroke, brain tumours or other neurological deficits. Visual field testing can be performed clinically by keeping the subject's gaze fixed while presenting objects at various places within their visual field. Simple manual equipment can be used such as in the tangent screen test or the Amsler grid. When dedicated machinery is used it is called a perimeter. The exam may be performed by a technician in one of several ways. The test may be performed by a technician directly, with the assistance of a machine, or completely by an automated machine. Machine based tests aid diagnostics by allowing a detailed printout of the patient's visual field.
Common problems of the visual field include scotoma, hemianopia, homonymous hemianopsia and bi temporal hemianopia.
- Age-related macular degeneration
- Perimetry
- Kinetic Perimetry
- Goldmann Perimetry
- Automated Perimetry
- Micro Perimetry
- Diabetic retinopathy
- Static Perimetry
- Cataract
- Blurred vision
- Crossed eyes
- Lazy eye