Outcomes of Anterior Chamber, Sulcus, and Pars Plana Glaucoma Drainage Device Placement in Glaucoma Patients
Table 2
Preoperative and surgical dataa.
Parameters
Total
AC
S
PP
value
Preoperative baseline
IOP (mmHg)
0.006
Mean ± SD
22.3 ± 7.4
24.6 ± 8.4
19.5 ± 5.3
22.9 ± 7.4
Range
9–49
9–49
11–42
10.5–42.5
Visual acuity
<0.001
Range
LP–20/20
LP–20/20
20/800–20/20
LP–20/20
# of glaucoma medications
0.827
Mean ± SD
4.1 ± 1.1
4.0 ± 1.1
4.2 ± 1.1
4.1 ± 1.0
Range
1–6
1–6
2–6
2–6
Type of surgery
<0.001
AGI
19 (15.8)
17 (42.5)
2 (5.0)
AGI/Phaco
3 (2.5)
2 (5.0)
1 (2.5)
BGI
27 (22.5)
18 (45.0)
9 (22.5)
BGI/Phaco
31 (25.8)
3 (7.5)
28 (70.0)
AGI/PPV
31 (25.8)
31 (77.5)
AGI/PPV/Phaco
5 (4.2)
5 (12.5)
BGI/PPV
4 (3.3)
4 (10.0)
BGI fenestrationb
Yes
49 (79.0)
16 (76.2)
31 (83.8)
2 (50.0)
No
13 (21.0)
5 (23.8)
6 (16.2)
2 (50.0)
Indications for sulcus placement, N (%)
Concurrent cataract surgery
30 (75.0)
Pseudophakia
8 (20.0)
Corneal transplant
3 (7.5)
Indications for PP placement, N (%)
Corneal transplant
15 (37.5)
ACIOL
8 (20.0)
SIOL
4 (10.0)
Aphakia
4 (10.0)
PPV needed for other indications
4 (10.0)
PCIOL scleral fixated
2 (5.0)
Shallow AC
1 (2.5)
Fuchs dystrophy
1 (2.5)
Presence of GDD in AC
1 (2.5)
Concurrent procedures in PP group
Removal of capsular remnants
8 (20.0)
PRP
6 (15.0)
Epiretinal membrane peel
6 (15.0)
Posterior capsulotomy
1 (2.5)
Intravitreal injection
1 (2.5)
Fluid air exchange
1 (2.5)
IOL repositioning/removal
2 (5.0)
AC = anterior chamber; S = sulcus; PP = pars plana; IOP = intraocular pressure; mmHg = millimeters of mercury; SD = standard deviation; AGI = Ahmed glaucoma implant; BGI = Baerveldt glaucoma implant; PPV = pars plana vitrectomy; Phaco = phacoemulsification; N = number of eyes; ACIOL = anterior chamber intraocular lens; SIOL = sulcus intraocular lens; PCIOL = posterior chamber intraocular lens; GDD = glaucoma drainage device; PRP = pan-retinal photocoagulation; IOL = intraocular lens. aPreoperative and surgical data across the 3 treatment groups were compared using a Fisher test. bPercentages were calculated as a proportion of eyes in each group that underwent BGI.
