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Table 3 Parameters of Schlemm’s canal and trabecular meshwork in the four quadrants of nanophthalmic and normal eyes

From: Morphological features of anterior segment: factors influencing intraocular pressure after cataract surgery in nanophthalmos

  

Visibility

(%)a

SC diameter (μm)b

SC area

(μm2)b

TM thickness

(μm)b

TM width

(μm)b

TM area

(μm2)b

Nasal

Nano

87.5

136.18 ± 29.58

2807.18 ± 945.41

99.20 ± 23.54

502.43 ± 65.75

38,065.32 ± 9882.56

Cont

100

165.11 ± 26.97

4264.03 ± 784.64

133.54 ± 25.11

542.66 ± 45.08

46,887.89 ± 6124.66

P

0.031c

< 0.001c

< 0.001c

< 0.001c

0.006c

< 0.001c

Temporal

Nano

93.8

147.77 ± 30.19

3086.23 ± 729.26

115.87 ± 33.72

508.03 ± 66.92

41,779.33 ± 10,536.28

Cont

100

173.23 ± 29.14

4417.20 ± 776.42

129.99 ± 26.66

531.23 ± 40.73

45,837.11 ± 6163.98

P

0.133

0.001c

< 0.001c

0.066

0.129

0.078

Superior

Nano

81.3

142.15 ± 23.95

3095.31 ± 689.14

121.44 ± 34.91

515.38 ± 66.69

41,776.92 ± 6991.90

Cont

100

171.51 ± 25.04

4422.46 ± 888.13

124.54 ± 24.66

547.2 ± 37.40

45,282.17 ± 5921.97

P

0.007c

< 0.001c

< 0.001c

0.573

0.065

0.067

Inferior

Nano

84.4

140.63 ± 31.65

3218.56 ± 901.31

126.46 ± 22.09

516.44 ± 58.51

40,955.81 ± 6291.93

Cont

97.1

172.35 ± 22.91

4545.38 ± 802.46

133.09 ± 20.74

539.91 ± 34.76

48,541.62 ± 4737.57

P

0.068

< 0.001c

< 0.001c

0.189

0.058

< 0.001c

Average

Nano

86.7

141.16 ± 23.05

3041.94 ± 622.59

115.35 ± 21.77

511.08 ± 46.14

40,701.00 ± 6762.56

Cont

99.3

170.34 ± 15.57

4403.73 ± 616.48

130.45 ± 16.26

538.75 ± 23.62

46,611.91 ± 4075.82

P

0.047c

< 0.001c

< 0.001c

0.002c

0.006c

< 0.001c

ICC

Nano

NA

0.81

0.96

0.83

0.82

0.72

Cont

NA

0.77

0.89

0.80

0.77

0.62

P

NA

0.38

0.14

0.49

0.46

0.44

  1. Nano = nanophthalmic group (N = 32), Cont =  control group (N = 35), P =  P value, ICC intraclass correlation coefficient, NA =  not applicable, SC= Schlemm’s canal, TM= trabecular meshwork
  2. a Comparisons of nanophthalmic group and control group were made using the χ2 test
  3. b Comparisons of the nanophthalmic and control groups were made with generalized estimating eq. ICC-related parameters were tested with R 3.1.0 using the cocor package
  4. c Statistically significant (P < 0.05)