Table 4

Association between the preoperative FAZ area and ocular variables: univariate and multivariable analyses (n=108 eyes)

Preoperative FAZ area, mm2
Univariate modelMultivariate model 1Multivariate model 2
VariablesCoefficientsP valueCoefficientsP valueCoefficientsP value
(95% CI)(95% CI)(95% CI)
Age (years) per 10 years0.020 (−0.014 to 0.053)0.254−0.006 (−0.038 to 0.026)0.751−0.003 (−0.036 to 0.03)0.860
Sex (male/female)0.058 (−0.017 to 0.133)0.129
CCT (μm) per 100 μm −0.152 (−0.25 to −0.054) 0.002* −0.113 (−0.214 to −0.013) 0.036** −0.12 (−0.22 to −0.019) 0.019**
Axial length (mm) per 1 mm0.033 (−0.194 to 0.259)0.777
Preoperative IOP (mmHg) per 10 mmHg0.013 (−0.024 to 0.049)0.496
HFA 24-2 MD (dB) per 10 dB−0.040 (−0.069 to −0.01)0.008−0.006 (−0.039 to 0.026)0.7010.015 (−0.029 to 0.058)0.512
Foveal Sensitivity
(1/Lambert) per 1000 unit
−0.032 (−0.047 to −0.017) <0.001* −0.022 (−0.039 to −0.005) 0.012**
Central-4point mean sensitivity
(1/Lambert) per 1000 unit
−0.057 (−0.085 to −0.029) <0.001* −0.057 (−0.101 to −0.012) 0.013**
Topical glaucoma medications (yes/no)
β-Blocker0.049 (−0.017 to 0.115)0.144
PG analogue 0.084 (0.011 to 0.158) 0.025*0.039 (−0.04 to 0.118)0.3370.019 (−0.057 to 0.096)0.619
CAI0.041 (−0.024 to 0.107)0.218
α-Agonists0.011 (−0.051 to 0.073)0.729
ROCK inhibitor0.024 (−0.036 to 0.084)0.436
  • *p<0.10, univariate analysis.

  • **p<0.05, multivariate analysis.

  • CAI, carbonic anhydrase inhibitors; CCT, central corneal thickness; FAZ, foveal avascular zone; HFA, Humphrey field analyser; IOP, intraocular pressure; MD, mean deviation; PG, prostaglandin; ROCK, Rho-associated coiled-coil-containing protein kinase.