Graft Survival after Penetrating Keratoplasty in Cases of Trabeculectomy versus Ahmed Valve Implant

Table 2

Characteristics of the included patients of trabeculectomy and Ahmed glaucoma valve groups after the glaucoma surgery.

	Trabeculectomy group	Ahmed valve group	value
Post-op BCVA (logMAR)
6 months	1.21 ± 0.65 (0.7–2.4)	1.27 ± 0.56 (0.8–2.1)	0.491
12 months	1.29 ± 0.67 (0.8–2.1)	1.33 ± 0.60 (0.9–2.1)	0.544
24 months	1.35 ± 0.59 (0.8–2.1)	1.36 ± 0.64 0.9–2.1)	0.697
Post-op IOP (mmHg)
6 months	13.20 ± 4.51 (8–21)	11.20 ± 3.32 (5–20)	0.001^#
12 months	13.50 ± 4.76 (8–25)	11.88 ± 3.55 (7–22)	0.001^#
24 months	13.98 ± 3.44 (10–26)	12.28 ± 3.71 (8–23)	0.001^#
Post-op number of medications
6 months	0.25 ± 0.44	0.15 ± 0.37	0.157
12 months	0.50 ± 0.76	0.25 ± 0.44	0.102
24 months	0.70 ± 0.80	0.40 ± 0.60	0.034^#
Eyes required needling + 5-fluorouracil
6 months	5 (25%)	2 (10%)	0.212
12 months	10 (50%)	4 (20%)	0.047^#
24 months	14 (70%)	6 (30%)	0.011^#
Total success rate
6 months	90%	95%	0.179
12 months	80%	90%	0.048^#
24 months	55%	80%	0.001^#

Using the Mann–Whitney test or the chi-square test where appropriate. ^#Significant.