Cutting Edge Glaucoma - Issue 2

44 • CUTTING EDGE - GLAUCOMA 19. Mansouri K, Gillmann K, Rao HL, Guidotti J, Mermoud A (2018) Prospective evaluation of XEN gel implant in eyes with pseudoexfoliative glaucoma. J Glaucoma 27:869–873. https://doi. org/10.1097/ijg.0000000000001045 20. Parrish RK 2nd, Minckler DS, Lam D, Pfeiffer N, RojanaPongpun P (2009) Recommended methodology for glaucoma surgical trials. In: Shaarawy TM, Sherwood MB, Grehn F (eds) World Glaucoma Association Guidelines on design and reporting of glaucoma surgical trials. Kugler Publications, Amsterdam, pp 1–14. 21. Armstrong RA (2013) Statistical guidelines for the analysis of data obtained from one or both eyes. Ophthalmic Physiol Opt 33:7–14. https://doi.org/10.1111/opo.12009 22. Rosner B, Glynn RJ, Lee ML (2003) Incorporation of clustering effects for the Wilcoxon rank sum test: a large- sample approach. Biometrics 59:1089–1098. https://doi.org/10.1111/j.0006-341X. 2003.00125.x 23. 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