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Humphrey field analyser (HFA) is a tool for measuring the human visual field that is commonly used by optometrists, orthoptists and ophthalmologists, particularly for detecting monocular visual field.
Aug 25, 2023 · This article discusses the process of perimetry and the interpretation of the visual field printouts (Humphrey visual field Analyzer). The history of visual field analysis dates back 2000 years, when Hippocrates first reported a case of hemianopsia.
- Surabhi Ruia, Koushik Tripathy
- 2023/07/31
The gold standard in visual field testing, Humphrey Field Analyzer 3, now combines everything you value in a Humphrey with expanded testing options and reduced patient test times.
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- Michael Chaglasian, OD
- The top of the VF printout page contains key information about patient demographics and the type of test that was performed. Always review this portion for accuracy.
- Confirming the validity of the VF is the second step. Fixation losses, false positives and false negatives are recorded—with false positives often being the most critical.
- In this classic example, the patient has moderate to advanced stage glaucoma. The large inferior defect is clearly depicted and appears similar on both the total and pattern deviation plots.
- This patient has a mild cataract and glaucoma. The generalized depression from the cataract is evident on the TD plot (lower left). The localized defect—a superior nasal step with an arcuate component—caused by the glaucoma is seen on the PD plot.
Apr 4, 2023 · Visual field testing can help your eye care provider find early signs of diseases like glaucoma that gradually damage vision. Some people with glaucoma don’t notice any problems with their vision, but the visual field test shows a loss of peripheral vision.
Feb 10, 2024 · “Technicians administer the visual fields, so it starts with planning and communicating what field you want to have done and how to do it. Additionally, fields are only as good as patients’ reliability, attention and endurance,” Dr. Murphy explains.
Automated perimetry was developed in the 1970s. As the name suggests, automated perimetry maps a visual field with the aid of a computer. The Octopus perimeter, the Humphrey Field Analyzer, and Humphrey Matrix are a few of the available automated perimeters.
