A Comparison between Tube Surgery, ND:YAG Laser and Diode Laser Cyclophotocoagulation in the Management of Refractory Glaucoma
Table 1
Matching criteria for the three groups of patients, showing the number of patients in each of the groups with each of the ranking variable values.
CycloYAG
Cyclodiode
Tube
Diagnosis
POAG
11
11
11
Postsurgical
14
14
14
Posttrauma
4
4
5
Inflammatory
4
4
3
CACG
3
3
3
Aniridia
2
2
3
Buphthalmos
2
2
2
Juvenile
2
2
1
Neovascular
1
1
1
Other
2
2
2
Total
45
45
45
Mean number of previous operations
None
3.1
2.7
3.2
1 operation
7
7
2
2 operations
5
5
9
3 operations
8
12
13
>3 operations
7
9
5
Mean number of previous glaucoma ops.
1.5
1.3
1.6
None
20
19
13
1 operation
8
10
15
2 operations
5
9
7
3 operations
5
3
5
>3 operations
7
4
5
Aphakia
34
30
35
Vitrectomised
13
10
11
Mean age in yrs (SD)
48.6 (20.7)
49.8 (19.8)
44.2 (17.7)
POAG: primary open angle glaucoma, CACG: chronic angle closure glaucoma, and diagnosis was not always matched with similar diagnoses in other groups; see Table 2.
