Quantification of Macular Vascular Density Using Optical Coherence Tomography Angiography and Its Relationship with Retinal Thickness in Myopic Eyes of Young Adults
Table 1
Demographic characteristics among the different myopia groups.
Variables
Mild myopia
Moderate myopia
High myopia
Number of eyes
81
117
70
Age (year)
26.1 ± 2.0
26.0 ± 1.6
26.1 ± 1.7
0.744
IOP at imaging (mmHg)
16.51 ± 2.65
16.39 ± 2.81
17.02 ± 2.31
0.271
Spherical equivalent (D)
−1.75 ± 0.72
−4.65 ± 0.84
−7.14 ± 0.94
<0.001
Systolic BP (mmHg)
115.31 ± 11.51
114.86 ± 11.68
112.63 ± 10.35
0.297
Diastolic BP (mmHg)
69.02 ± 7.04
68.71 ± 7.75
66.44 ± 6.66
0.059
MAP (mmHg)†
84.45 ± 7.21
84.09 ± 8.13
81.84 ± 6.93
0.071
Pulse pressure (mmHg)‡
46.28 ± 10.66
46.15 ± 9.38
46.19 ± 8.79
0.996
Heart rate (beats/min)
77 ± 13
79 ± 11
80 ± 12
0.458
Axial length (mm)
24.23 ± 0.94
25.21 ± 0.76
26.15 ± 0.93
<0.001
Central corneal thickness (μm)
541.96 ± 37.90
539.37 ± 34.10
532.79 ± 31.33
0.250
Data are expressed as the mean ± SD. SD: standard deviation; IOP: intraocular pressure; BP: blood pressure; MAP: mean arterial pressure. †MAP = 1/3 × systolic BP + 2/3 × diastolic BP; ‡pulse pressure = systolic BP − diastolic BP.
