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Br J Ophthalmol 84:1147-1153 doi:10.1136/bjo.84.10.1147
  • Original Article
    • Clinical science

Pilot study of the multifocal electroretinogram in ocular hypertension

Table 2

Statistical results of the MERG in OHT and control groups in different groupings (five ring and four quadrant)

First order response density (nV/deg2)
  a-wave b-wave
Region M R1 R2 R3 R4 Average M R1 R2 R3 R4 Average
ttest 6.12 6.52 7.51 8.30 6.39 8.07 9.89 8.13 10.75 8.99 8.37 9.85
p Value <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001
Second order response density (nV/deg2)
  N1P1 P1N2
Region M R1 R2 R3 R4 Average M R1 R2 R3 R4 Average
ttest 5.81 8.42 7.60 8.14 9.60 10.56 9.20 9.57 10.29 8.37 8.49 10.87
p Value <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001
First order response amplitude (nV)
  a-wave b-wave
Region SN IN IT ST SN IN IT ST
ttest 4.81 8.52 8.52 6.55 6.48 8.90 10.21 8.34
p Value <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001
Second order response amplitude (nV)
  N1P1 P1N2
Region SN IN IT ST SN IN IT ST
ttest 10.30 7.81 8.78 7.14 12.19 6.34 10.23 8.02
p Value <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001

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