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Table 4 Characteristics of the studies evaluating the CCT in diabetic patients

From: The relationship of central corneal thickness with the status of diabetic retinopathy

References

(Author, year)

Eyes (N)

CCT Mean Ā± SD

Method of CCT measurement

Significant correlation

DM group

Control group

DM group

Control group

Lee at al. 2006 [2]

200

100

588.2Ā±72.7 Ī¼m

567.8Ā±73.8 Ī¼m

Ultrasound pachymetry

Yes

Wiemer et al. 2007 [3]

102 (DM type 1)

69

0.586 Ā±0.003 mm

0.578Ā± 0.004 mm

Topcon SL-45 Scheimpflug camera

No

101( DM type 2)

0.578 Ā±0.003 mm

Busted et al. 1981 [5]

Diabetics without PR

67

0.544Ā±0.028 mm

0.527Ā±0.028 mm

Modified Haag-Streit pachometer

Yes

Diabetics with PR

0.566Ā±0.027 mm

(total 81)

Ā 

Keoleian et al. 1992 [25]

14

14

0.56 Ā± 0.02 mm

0.56 Ā± 0.04 mm

Pachymetry

No

Ɩzdamar et al. 2010 [14]

100

145

564Ā±30 Ī¼m

538Ā±35 Ī¼m

Biopachymeter (Tomey, Nagoya)

Yes

Inoue et al. 2002 [26]

99

97

538Ā± 36 Ī¼m

537 Ā± 38 Ī¼m

Ultrasonic pachymeter (AL-2000; Tomey, Nagoya)

No

  1. CCT central corneal thickness, DM diabetes mellitus, N number, SD standard deviation, PR proliferative retinopathy