Table 2 Correlation between status of third HRB at initial visit examined at 500, 1000 and 1500 µm from fovea and final status of third HRB
Third HRB status at initial visitThird HRB status at final visitp Value
HRB(+)HRB(−)
In fovea:
Present31
Absent9160.141
At 500 µm from fovea:
Present102
Absent215<0.001
At 1000 µm from fovea:
Present119
Absent180.0033
At 1500 µm from fovea:
Present1215
Absent020.218
  • HRB(+), eyes with third high reflectance band (HRB) in the fovea; HRB(−), eyes without third HRB in the fovea.