Prospective Evaluation of Standalone XEN Gel Implant And Combined Phacoemulsification-XEN Gel Implant Surgery: 1-Year Results Kaweh Mansouri, M.D., M.P.H. 1,2 AND Jacopo Guidotti, M.D. 1 , Harsha L Rao, M.D. 3 , Adel Ouabas, M.D. 1 , Elisa D’Alessandro, M.D. 1 , Sylvain Roy, M.D. 1 , and André Mermoud, M.D. 1 Dr Mansouri and Dr Guidotti each contributed equally to this study. 1 Glaucoma Research Center, Montchoisi Clinic, Swiss Vision Network, Lausanne, Switzerland. 2 Department of Ophthalmology, University of Colorado School of Medicine, Denver, CO, USA. 3 Narayana Nethralaya, 63, Bannerghatta Road, Hulimavu, Bangalore, India. Running Head: One year results of XEN and XEN-Phaco surgery Disclosure: The authors declare no conflict of interest. Supported in part by the Swiss Glaucoma Research Foundation, Lausanne, Switzerland. Corresponding author: Kaweh Mansouri, MD MPH, Glaucoma Research Center, Montchoisi Clinic, Swiss Vision Network, Lausanne, Switzerland. Phone: +41 (21) 619-37-42. Fax: +41 (21) 619-36-28. E-mail: kawehm@yahoo.com Copyright © 2017 Wolters Kluwer Health, Inc. Unauthorized reproduction of the article is prohibited. Journal of Glaucoma Publish Ahead of Print DOI:10.1097/IJG.0000000000000858