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Table 1 Inclusion and exclusion criteria of the study cohort

From: Preliminary results of Preserflo Microshunt versus Preserflo Microshunt and Ologen implantation

Inclusion Criteria
Refractory to medical treatment POAG and moderate to advanced POAG according to HPA classification system
Prior uncomplicated cataract extraction, no prior history of glaucoma surgery or laser treatment
ACD ≥ 2.7 mm, ACA ≥ Schaffer 3–4°
Exclusion Criteria
Secondary glaucoma, ACG, OHT, PDG, PEXG, LTG, prior glaucoma surgery or laser treatment
Prior refractive surgery, PPV, phakic patients, corneal and retinal pathology, AMD, CME, last eye - monocular
No glaucoma medication or mono-therapy
  1. POAG primary open-angle glaucoma; HPA Hodapp-Parrish-Anderson classification system; ACD anterior chamber depth; ACA anterior chamber angle; ACG angle-closure glaucoma; OHT ocular hypertension; PDG pigmentary dispersion glaucoma; PEXG pseudoexfoliation glaucoma; LTG low-tension glaucoma; PPV pars plana vitrectomy; AMD age-related macular degeneration; CME cystoid macular edema