Skip to main content

Table 3 Twelve-month postoperative outcome

From: Comparison of surgical outcomes of trabeculectomy, Ahmed shunt, and Baerveldt shunt in uveitic glaucoma

 

Total

Trabeculectomy

Ahmed

Baerveldt

p value

 

n = 115 eyes

n = 11 eyes

n = 17 eyes

n = 87 eyes

 

IOP (mmHg), M (range)

12 (4–38)

10 (5–38)

14 (6–27)

12 (4–38)

0.19*

Visual acuity (logMAR) M (range)

0.6 (0–3)

0.2 (0–1)

0.5 (0–3)

0.7 (0–3)

0.097*

Number of topical glaucoma medications, M (range)

2 (0–4)

0 (0–4)

2 (0–4)

2 (0–4)

0.22*

On systemic glaucoma medications, % (n)

5 (6)

9 (1)

6 (1)

4 (4)

0.59

Number of topical anti-inflammatory medications, M (range)

1 (0–2)

1 (0–2)

1 (0–2)

1 (0–2)

0.69*

On systemic immunosuppressants, % (n)

5 (6)

9 (1)

6 (1)

4 (4)

0.59

IOP reduction (mmHg), M (range)

22 (10–76)

22 (10–39)

24 (11–46)

21 (8–76)

0.62*

% IOP reduction, M (range)

66 (− 38–89)

69 (36–82)

67 (29–86)

65 (38–89)

0.76*

Change in visual acuity (logMar), M (range)

0 (− 3–2)

− 0.3 (− 1–0.2)

0 (−1–2)

0 (− 3–2)

0.48*

Lost > 2 lines in visual acuity, % (n)

33 (38)

36 (4)

41 (7)

31 (27)

0.70§

Cataract surgery during follow up period, % (n)

13 (15)

0 (0)

6 (1)

16 (14)

0.35

Failure, % (n)

7.5 (11)

18 (3)

23 (5)

3 (3)

0.0015

  1. Further pairwise comparison showed a significant difference in 6 months IOP in Ahmed versus trabeculectomy (p = 0.02) and Ahmed versus Baerveldt (p = 0.0086). There was no significant difference in 6 months IOP between trabeculectomy versus Baerveldt (p = 0.32)
  2. Failure was defined as postoperative intraocular pressure greater than 21 mmHg or less than 5 mmHg, < 20% IOP reduction, reoperation, or loss of light perception
  3. IOP intraocular pressure, logMAR logarithm of minimum angle of resolution
  4. *Kruskal-Wallis test; Fisher’s exact test; §chi-squared test