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Outpatients Department Manchester Royal Eye
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0161 276 5595
The Visual Fields Department undertakes the
testing of a patient's visual field or 'Perimetry'.
Perimetry testing is crucial in the screening,
diagnosis and monitoring of various eye, retinal, optic nerve and
A visual fields test uses varying intensities
of light. It works by systematically measuring differential light
sensitivity in the visual field by detecting the presence of 'test
targets' on a defined background.
Testing can be performed in a number of ways
- Clinical tests using 'confrontational'
field testing to assess a wider area of the visual field. The
patient's gaze is fixed and objects appear at various places in
their visual field.
- Perimetry, which is able to assess and
record the visual field. The Visual Fields Department at The
Manchester Royal Eye Hospital uses a range of 'kinetic perimetry;
including the Goldmann bowl perimiter and the Humphrey visual field
analysers. This involves using a mobile stimulus moved by a
perimetrist and is useful for testing and recording the outer
limits of a patient's vision with the eye kept in a static
- Threshold static perimetry is generally
done using automated equipment and is specifically used for rapid
screening and follow up of diseases, scotomas (blind spots), loss
of peripheral vision and more subtle vision loss.
Opening hours are 08:45am to 17:00pm, Monday
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