Research Article

Correlation of Optic Nerve Microcirculation with Papillomacular Bundle Structure in Treatment Naive Normal Tension Glaucoma

Table 1

Characteristics of patients.

CharacteristicsNTGNormal people value
Number, mean ± SDNumber, mean ± SD

Number4020
Gender
 Male19 (19 eyes)10 (10 eyes)0.81*
 Female21 (21 eyes)10 (10 eyes)
Laterality
 Right2190.81*
 Left1911
Age (years)63.3 ± 9.659.7 ± 9.90.16**
BCVA () 0.10 ± 0.2−0.10 ± 0.08<0.01**
IOP (mmHg)14.6 ± 3.216.2 ± 3.30.18**
Refractive error (diopter)−2.94 ± 2.3−2.04 ± 2.20.17**
HFA 30–2 mean deviation (MD; dB)−11.9 ± 8.40.17 ± 1.3<0.01**
Macular area
 RNFLT (m)19.1 ± 9.134.5 ± 4.0<0.01**
 GCCT (m)75.3 ± 14.7101.6 ± 7.0<0.01**
Central papillomacular bundle
 RNFLT (m)
  Upper36.4 ± 21.266.9 ± 15.6<0.01**
  Middle30.3 ± 13.942.2 ± 7.7<0.01**
  Lower29.1 ± 21.070.9 ± 18.1<0.01**
 GCCT (m)
  Upper81.5 ± 25.1117.2 ± 14.2<0.01**
  Middle90.7 ± 24.9114.5 ± 9.5<0.01**
  Lower75.3 ± 21.4120.7 ± 17.7<0.01**
Circumpapillary RNFLT (m)
 Total81.2 ± 12.2107.3 ± 10.6<0.01**
 Temporal71.1 ± 17.584.9 ± 11.5<0.01**
 Superior98.3 ± 19.2126.6 ± 16.3<0.01**
 Nasal75.1 ± 16.386.1 ± 15.9<0.01**
 Inferior80.4 ± 20.6131.5 ± 17.0<0.01**
LSFG MBR (AU)
 MA
  Temporal8.6 ± 2.611.8 ± 2.1
  Superior20.4 ± 6.128.3 ± 5.6
  Nasal21.5 ± 6.329.9 ± 6.4
  Inferior17.5 ± 5.026.7 ± 5.3
 MT
  Temporal7.8 ± 2.010.1 ± 1.6
  Superior10.8 ± 2.712.6 ± 2.0
  Nasal11.9 ± 2.513.5 ± 1.6
  Inferior10.0 ± 2.412.9 ± 1.8
 MV
  Temporal27.2 ± 10.136.9 ± 12.7
  Superior37.9 ± 9.048.0 ± 5.2
  Nasal36.3 ± 8.948.4 ± 7.6
  Inferior35.1 ± 7.744.7 ± 5.1
Temporal/nasal MT0.66 ± 0.10.75 ± 0.1<0.01**
Systolic blood pressure (SBP) (mmHg)127.1 ± 20.4133.7 ± 21.70.26**
Diastolic blood pressure (DBP) (mmHg)77.8 ± 14.582.9 ± 14.10.07**
Heart rate (HR) (bpm)73.2 ± 11.176.9 ± 9.90.16**

NTG: normal tension glaucoma, BCVA: best-corrected visual acuity, : logarithm of the minimal angle resolution, IOP: intraocular pressure, HFA: Humphrey field analyzer, RNFLT: retinal nerve fiber layer thickness, GCCT: ganglion cell complex thickness, MBR: mean blur rate, AU: arbitrary unit, MA: mean MBR in all areas, MT: mean MBR in the tissue area, and MV: mean MBR in the vessel area.
Fisher’s exact test, **Mann-Whitney test.