Table 2 Times between when dye first appeared in various vascular tissues and in the optic nerve head (ONH).

From: Anterior Optic Nerve Head Perfusion is Dependent on Adjacent Parapapillary Choroidal perfusion

Vessel

Time (seconds)*

POAG

Normal subjects

P-value†

Cilioretinal artery‡

−0.85 ± 0.54

−0.59 ± 0.77

0.617

Central retinal artery

−0.72 ± 0.98

−0.92 ± 0.93

0.555

Parapapillary choroidal arteriole

−0.61 ± 0.69

−0.94 ± 0.85

0.235

Microvessels crossing from the choroid to the ONH

0.00 ± 0.00

0.00 ± 0.00

—

Peak intrapapillary filling

10.46 ± 2.85

9.83 ± 3.43

0.687

  1. Data are mean ± SD values.
  2. *Time difference between the initial appearance of ICG dye in each vessel and within the ONH. Negative value indicates that dye appeared prior to the appearance in the ONH.
  3. †Calculated using the Mann-Whitney U test.
  4. ‡Cilioretinal artery was found in five eyes (15.2%) in POAG and four eyes (40.0%) in normal subjects.
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