Table 4 Comparison of central corneal thickness between children with some challenges and normal.

From: Anterior segment indices in mentally retarded children

Author

Challenge

With challenge

Normal

P-value

Akinci9

Mental retardation

549.7 ± 21.4

521.6 ± 16.9

< 0.001

Cumurcu10

Cerebral palsy

568.46 ± 31.94

549.53 ± 26.16

< 0.001

Karadag11

Mental retardation

554 ± 39.7

535.7 ± 24.2

< 0.05

Hashemi12

Down syndrome

516.7 ± 33

555.7 ± 33.1

< 0.001

Alio13

Down syndrome

503 ± 28.11

545 ± 32.56

< 0.001

Karakucuk14

Down syndrome

524.1 ± 33.4

546.1 ± 27.7

< 0.001

Aslan15

Down syndrome

494.27 ± 47

539.3 ± 40

< 0.001

Evereklioglu16

Down syndrome

488.39 ± 39.87

536.25 ± 20.70

< 0.001