Analysis of Choroidal Vascularity Index in Keratoconus Patients Using Swept-Source Optical Coherence Tomography-Based Binarization Techniques
Table 3
Choroidal thickness and vascular coefficients in both groups.
KC
Control
KC-control (95% CI)
value
Temporal 5 (μm)
305.8
227.7
+78.1 (53.0 to 103.3)
<0.0001
Temporal 4 (μm)
334.9
243.6
+91.3 (63.5 to 119.1)
<0.0001
Temporal 3 (μm)
344.5
254.6
+89.9 (62.1 to 117.6)
<0.0001
Temporal 2 (μm)
354.4
269.1
+85.2 (55.8 to 114.7)
<0.0001
Temporal 1 (μm)
378.2
285.3
+92.9 (62.5 to 123.3)
<0.0001
Subfoveal (μm)
385.0
290.7
+94.3 (64.1 to 124.6)
<0.0001
Nasal 1 (μm)
338.8
259.3
+79.5 (52.7 to 106.3)
<0.0001
Nasal 2 (μm)
270.0
203.4
+66.6 (42.1 to 91.1)
<0.0001
Nasal 3 (μm)
192.3
145.4
+46.8 (27.9 to 65.8)
<0.0001
Choroidal area (mm2)
1.92
0.50
+1.42 (1.29 to 1.53)
<0.0001
Stromal region (mm2)
0.80
0.25
+0.55 (0.50 to 0.60)
<0.0001
Vascular region (mm2)
1.10
0.25
+0.85 (0.78 to 0.92)
<0.0001
CCV (%)
56.60
49.40
+7.19 (5.66 to 8.73)
<0.0001
Comparison of choroidal thickness and vascular coefficients between keratoconic patients and healthy controls. Results represent mean (standard deviation) except when indicated. CCV: corrected choroidal percent vascularity; KC: keratoconus.
