Research Article

Trabecular-Iris Circumference Volume in Open Angle Eyes Using Swept-Source Fourier Domain Anterior Segment Optical Coherence Tomography

Table 2

Angle measurements [Mean (SD)] for all eyes and for eyes in each age group.

Age (years)
All  
()
35  
()
36–45  
()
46–55  
()
56–65  
()
65  
()

TISA500 (mm2)
 Temporal0.153 (0.070)0.201 (0.074)0.168 (0.057)0.119 (0.044)0.147 (0.080)0.127 (0.061)
 Nasal0.160 (0.091)0.208 (0.097)0.172 (0.065)0.122 (0.071)0.154 (0.081)0.143 (0.117)
 Superior0.109 (0.066)0.158 (0.061)0.130 (0.064)0.073 (0.048)0.092 (0.055)0.090 (0.065)
 Inferior0.148 (0.080)0.214 (0.081)0.162 (0.065)0.107 (0.066)0.131 (0.082)0.126 (0.064)
TISA750 (mm2)
 Temporal0.286 (0.115)0.369 (0.125)0.313 (0.094)0.227 (0.075)0.280 (0.128)0.239 (0.095)
 Nasal0.296 (0.144)0.378 (0.152)0.321 (0.113)0.236 (0.117)0.288 (0.146)0.254 (0.159)
 Superior0.221 (0.113)0.306 (0.105)0.260 (0.113)0.161 (0.083)0.196 (0.101)0.179 (0.100)
 Inferior0.281 (0.136)0.391 (0.136)0.311 (0.115)0.212 (0.114)0.253 (0.140)0.235 (0.098)
TICV500 (L)4.751 (2.304)6.568 (2.432)5.309 (1.810)3.491 (1.640)4.339 (2.085)4.028 (2.316)
TICV750 (L)8.896 (3.880)11.934 (4.018)9.966 (3.113)6.808 (2.826)8.257 (3.701)7.461 (3.627)

TISA = trabecular-iris surface area; TICV = trabecular-iris circumference volume.