The usefulness of lutein/trypan blue vital dye for the staining of corneal endothelium: a pilot study on DMEK pretreated tissues.

"Declarations Ethics approvalThis experimental study (Jan–Dec 2020), involving human specimens not suitable for transplantation, was approved by Università Tor Vergata (G. L.). Donors gave the appropriate written consent in life to donate for corneal tissue transplantation or research purposes in case of unsuitability for transplantation. Consent to participateNA. Consent for publicationNA. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"The authors would like to thank Dr. Anna Rita Blanco (Medical Liaison, Alfa Intes) for her technical assistance and scientific support. Editorial and graphical assistance was provided by Simonetta Papa, PhD; Massimiliano Pianta; and Aashni Shah (Polistudium SRL, Milan, Italy). This editorial assistance was supported by Alfa Instruments s.r.l. Alfa Instruments s.r.l. was not involved in the study design, collection, analysis, or interpretation of data, in the writing of this article or in the decision to submit it for publication. The study was partially supported by the Italian Ministry of Health (RC 2765948). Bijorn Omar Balzamino, Graziana Esposito and Alessandra Micera are grateful to Fondazione Roma (Italy) for continuous support."