Table 2: Preoperative risk factors in the groups.

Complicating factor. n (%)

Study group

Control group

p-value

Corneal scar, n (%)

 18 (0.75)

12 (0.49)

0.27a)

Corneal dystrophy, n (%)

50 (2.11)

36 (1.48)

0.10a)

Uveitis, n (%)

6 (0.25)

0 (0.00)

0.01a)*

Pseudoexfoliation syndrome, n (%)

144 (6.09)

180 (7.42)

0.07a)

Glaucoma suspicion, n (%)

94 (3.97)

37 (1.52)

< 0.001a)*

Glaucoma, n (%)

171 (7.23)

71 (2.93)

< 0.001a)*

Facodonesis, n (%)

2 (0.08)

1 (0.04)

0.62a)

Mature cataract, n (%)

53 (2.24)

16 (0.66)

<0.001a)*

Dry AMD, n (%)

365 (15.43)

429 (17.68)

0.04a)*

Exudative AMD, n (%)

32 (1.35)

22 (0.91)

0.17a)

Diabetic eye disease, n (%)

43 (1.82)

5 (0.21)

< 0.001a)*

Retinal degenerations, treated tears, n (%)

23 (0.97)

31 (1.28)

0.34a)

Vitrectomized eye, n (%)

10 (0.42)

3 (0.12)

0.05a)*

Prior refractive surgery, n (%)

15 (0.63)

4 (0.16)

0.01a)*

Prior ocular contusion, n (%)

2 (0.08)

4 (0.16)

0.69a)

Morbus Parkinson, n (%)

15 (0.63)

24 (0.99)

0.20a)

Memory disorders, n (%)

42 (1.78)

82 (3.38)

< 0.001a)*

Total number of complicating factors per patient, n (%)

 

 

 

Mean ± SD

0.49 ± 0.61

0.39 ± 0.61

< 0.001b)*

0

1423 (60.14)

1616 (66.58)

 

1

811 (34.28)

679 (27.98)

 

2

123 (5.20)

119 (4.90)

 

3

8 (0.34)

12 (0.49)

 

4

1 (0.04)

1 (0.04)

 

a) Fisher's exact test, AMD: Age Related Macular Degeneration, b) t-Test, n = number of patients, *= statistically significant