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Br J Ophthalmol 83:353-357 doi:10.1136/bjo.83.3.353
  • Original Article
    • Clinical science

Measurement of retinal nerve fibre layer by scanning laser polarimetry and high pass resolution perimetry in normal tension glaucoma with relatively high or low intraocular pressure

Table 3

Correlation between neural capacity and thickness of retinal nerve fibre layer

Total (n=41) HNTG (n=20) LNTG (n=21)
r Regression line p Value r Regression line p Value r Regression line p Value
Total 0.29 Y = 51.06 + 0.20X 0.0662 0.44 Y = 46.92 + 0.29X 0.0555 0.13 Y = 56.53 + 0.09X 0.5818
Superior 0.44 Y = 47.03 + 1.50X 0.0045 0.52 Y = 43.64 + 1.67X 0.0196 0.35 Y = 51.28 + 1.28X 0.1239
Temporal 0.02 Y = 50.83 + 0.05X 0.8879 0.26 Y = 40.15 + 0.50X 0.2787 −0.22 Y = 64.30 − 0.48X 0.3470
Inferior 0.39 Y = 57.71 + 1.26X 0.0126 0.49 Y = 55.46 + 1.49X 0.0286 0.27 Y = 60.46 + 0.96X 0.2297
Nasal 0.07 Y = 49.33 + 0.72X 0.6492 0.14 Y = 48.03 + 1.52X 0.5535 0.05 Y = 48.55 + 0.51X 0.8149
  • HNTG = normal tension glaucoma with intraocular pressure between 16 and 21 mm Hg; LNTG = normal tension glaucoma with intraocular pressure below 15 mm Hg.

  • Total thickness of retinal nerve fibre layer (Y)v total neural capacity (X).

  • Thickness of retinal nerve fibre layer in the superior quadrant (Y)v the corresponding quadrant neural capacity (X).

  • Thickness of retinal nerve fibre layer in the temporal quadrant (Y)v the corresponding quadrant neural capacity (X).

  • Thickness of retinal nerve fibre layer in the inferior quadrant (Y)v the corresponding quadrant neural capacity (X).

  • Thickness of retinal nerve fibre layer in the nasal quadrant (Y)v the corresponding quadrant neural capacity (X).

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