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Br J Ophthalmol 82:1112-1117 doi:10.1136/bjo.82.10.1112
  • Original Article
    • Clinical science

Laser scanning tomography of localised nerve fibre layer defects

Table 2

Eyes without measurable surface depression at the site of RNFL damage. The RNFL defects were visible in selected single optical section images, but not in the topographic images. See legend of Table 1 for further information

Number 7 8 9 10 11 12
Age 73 60 58 46 60 54
Visual field 30-2 10-2 30-2 Centring 10-2 none
Width (mm) 1.0 0.25 0.72 0.16 0.10 0.18
Depth (μm) (SD) −5 (5) −3 (1) 5 (6) 7 (13) −1 (6)
Ratio 0.86 0.93 0.95 0.95 0.96 0.89

  • ↵Excluded from three dimensional topographic evaluation because of insufficient signal to noise ratio due to media opacities.

  • ↵The localised defect did not extend within 1 mm from the disc edge. It was therefore measured at a distance of 3.0 mm from the disc border.

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