Hi guys
This is a video showing the Humphrey visual Field instrument and How it’s used to test ones visual Field.
The Humphrey visual field test measures the entire area of peripheral vision that can be seen while the eye is focused on a central point. The perception of these lights is charted and then compared to results of a healthy eye at the same age of the patient to determine if any damage has occurred.
Your visual field is how wide of an area your eye can see when you focus on a central point. Visual field testing is one way your optometrist or an ophthalmologist measures how much vision you have in either eye, and how much vision loss may have occurred over time.
Visual field testing can detect blind spots
A visual field test can determine if you have blind spots (called scotoma) in your vision and where they are. A scotoma’s size and shape can show how eye disease or a brain disorder is affecting your vision. For example, if you have glaucoma, this test helps to show any possible side (peripheral) vision loss from this disease.
Optometrist and Ophthalmologists also use visual field tests to assess how vision may be limited by eyelid problems such as ptosis and droopy eyelids.
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