HUMPHREY FIELD ANALYSIS
For example, optic nerve damage caused by glaucoma creates a very specific visual field defect. Other eye problems associated with blind spots and other visual field defects include optic nerve damage (optic neuropathy) from disease or damage to the light-sensitive inner lining of the eye (retina).
Brain abnormalities such as those caused by strokes or tumours can affect the visual field. In fact, the location of the stroke or tumour in the brain can frequently be determined by the size, shape and site of the visual field defect.
Validated by more than 30 years of research, design and clinical experience, the Humphrey Field Analyser (HFA) is the accepted golf standard of car to aid in glaucoma and visual field loss diagnosis.