Table 3 Correlation between status of third HRB at initial visit examined at 500, 1000 and 1500 µm from fovea and final VA
Third HRB status at initial visitVA at final visitp Value
⩾20/32<20/32
In the fovea:
Present22
Absent14110.823
At 500 µm from fovea:
Present102
Absent6110.0104
At 1000 µm from fovea:
Present146
Absent270.0167
At 1500 µm from fovea:
Present1611
Absent020.104
  • VA, visual acuity; HRB(+), eyes with third high reflectance band (HRB) in the fovea; HRB(−), eyes without third HRB in the fovea.