- run on Humphreys visual field test
- Suprathreshold test
- 10dB (bright) stimulus in each 120 locations of the VF
- Target equivalent to Goldmann III4e
- Maximum of 20 False positives is allowed
- Requirements for Group 1 driving
- 120 deg horizontal with extension of atleast 50 deg left and right, with no significant defect within 20 deg of fixation above or below horizontal midline
- Fails if
- 4 or more contiguous loss within 20 deg of midline
- 3 contiguous cluster up to and including central 20deg + 1 more missed spot
- any central loss that is an extension of quadrantopia/hemianopia
- Requirement for Group 2 driving
- Horizontal VF should be at least 160°, with extension of at least 70° to the left and 70° to the right, and extension of at least 30° above and below the horizontal plane with no defects within a radius of the central 30°
- Fails if
- significant defects outside of the central 30° but lying within the ‘letterbox’ of vision comprising 70° left/ right, and 30° above/ below the horizontal plane; ‘significant’ is defined as >3 points which may or may not be contiguous.
Exceptions for Group 1 only: where a patient has fully adapted to a static, long- standing
defect, the DVLA may consider them as an ‘exceptional case’ and perform
a practical driving assessment.
- 🎯 What Examiner Might Ask:
- Identify the test
- Interpret the test
- Whether this patient is fit to drive?
Available from:https://www.researchgate.net/figure/Binocular-Esterman-visual-field-test-results-A-B-Patients-pass-because-there-is-no_fig1_348576575