[Retracted] Modified Trabeculectomy versus Glaucoma Drainage Implant Surgery: A Retrospective Comparative Study for Refractory Glaucoma Treatment

Table 3

Etiological classification of complex glaucoma.

	I (%)	II (%)
		IIa (%)	IIb (%)
Group A ()	8 (21.05%)	18 (47.37%)	12 (31.58%)
Group B ()	1 (5.00%)	10 (50.0%)	9 (45.00%)
Group C ()	2 (11.11%)	11 (61.11%)	5 (27.78%)
	3.113
	0.555

Fisher probabilities were used to analyze the etiological classification. I: primary glaucoma (including failed filtration surgery and juvenile glaucoma); IIa: secondary glaucoma (including glaucoma secondary to chemical burn, PKG, UG, glaucoma after intraocular surgery, glaucoma secondary to trauma, steroid-induced glaucoma, and glaucoma secondary to bullae keratopathy); IIb: NVG.