Clinical Outcomes of Peripheral Iridotomy in Patients with the Spectrum of Chronic Primary Angle Closure
Table 2
Summary of primary outcomes after PI.
Variable
All Eyes ()
PAC spectrum disease
Treatment
PACS ()
CPAC ()
CPACG ()
PI only ()
PI + Iridoplasty ()
Followup duration (months), mean ± SD
57.1 ± 29.0
54.4 ± 36.9
60.9 ± 26.3
55.1 ± 23.1
54.5 ± 36.3
71.7 ± 39.4
Additional medical and surgical treatments, (%)
68 (86.1)
18 (72.0)
28 (93.3)
22 (91.7)
56 (83.6)
12 (100)
Additional glaucoma treatments, (%)
51 (64.6)
7 (28.0)
24 (80.0)
20 (83.3)
42 (62.7)
9 (75.0)
Medical treatment only
28
7
15
6
24
4
Glaucoma surgery (GS)*
23
0
9
14
18
5
Cataract extraction (CE) procedure, (%)
40 (50.6)
13 (52.0)
16 (53.3)
11 (45.8)
34 (50.8)
6 (50.0)
Additional surgery (CE or GS), (%)
48 (60.8)
13 (52.0)
18 (60.0)
17 (70.8)
40 (59.7)
8 (66.7)
CE only
25
13
9
3
22
3
GS only
8
0
2
6
6
2
Combined CE and GS
5
0
3
2
5
0
GS first then CE
7
0
3
4
5
2
CE first then GS
3
0
1
2
2
1
Clinical impression of visual field/optic disc progression, (%)
14 (17.7)
2 (8.0)
3 (10.0)
9 (37.5)
13 (19.4)
1 (8.3)
Visual field only
4
0
1
3
4
0
Optic disc only
6
1
1
4
5
1
Both visual field and optic disc
4
1
1
2
4
0
CE: cataract extraction; GS: glaucoma surgery; PACS: primary angle closure suspect; CPAC: chronic primary angle closure; CPACG: chronic primary angle closure glaucoma. Glaucoma surgery was performed after medical treatment, except for one PAC eye which was never on medications during followup.
