Bleb Morphology Using Anterior-Segment Optical Coherence Tomography after Ahmed Glaucoma Valve Surgery with Tenon Capsule Resection

Table 4

Maximal bleb wall thickness of the studied groups.

Postoperative maximal bleb wall thickness (μm)	Group 1	Group 2	value
	No = 15	No = 15
1 day
Mean ± SD	754.67 ± 53.93	707.13 ± 31.7	0.004
Median	780	719
Min-max	650–800	640–740
1 week
Mean ± SD	712.33 ± 66.99	599.93 ± 41.82	<0.001
Median	750	590
Min-max	610–780	550–690
1 month
Mean ± SD	684 ± 81.66	499.53 ± 99.1	<0.001
Median	730	535
Min-max	530–760	370–625
3 months
Mean ± SD	671.6 ± 69.48	506 ± 76.91	<0.001
Median	710	515
Min-max	545–745	412–615
6 months
Mean ± SD	718.2 ± 72.4	620.86 ± 82.29	0.002
Median	760	630
Min-max	560–785	515–725
Fried man test ( value)	45.329 (<0.001)	54.247 (<0.001)
Post hoc test	^2,3.6.9,10 <0.05	^1,2,3.4.5.6,9,10 <0.05
	^1,4,5,7,8 >0.05	^7.8 >0.05

¹1 day later-1 week later; ²1 day later-1 month later; ³1 day later-3 months later; ⁴1 day later-6 months later; ⁵1 week-1 month later; ⁶1 week later-3 months later; ⁷1 week-6 months later; ⁸1 month later-3 months later; ⁹1 month later-6 months later; ¹⁰3 months later-6 months later. Significant.