RT Journal Article SR Electronic T1 Development of a new superficial punch for Descemet's Membrane Endothelial Keratoplasty donor tissue preparation JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 443 OP 445 DO 10.1136/bjophthalmol-2015-306635 VO 100 IS 4 A1 Alessandro Ruzza A1 Mohit Parekh A1 Gianni Salvalaio A1 Stefano Ferrari A1 Diego Ponzin YR 2016 UL http://bjo.bmj.com/content/100/4/443.abstract AB Endothelial Keratoplasty (EK) is a corneal surgical procedure that allows a selective transplantation of the posterior layer of the cornea. Descemet's Membrane Endothelial Keratoplasty (DMEK) is one of the EK procedures in which the diseased Descemet's Membrane and the endothelium are replaced with a healthy donor tissue. To achieve this, the donor cornea is cut superficially from the endothelial side and the tissue can be separated using specific instruments like Pierse Notched, Acute or Fogla forceps. However, the pressure required to punch the superficial layer has always been a challenge and therefore a calibrated device to punch and excise the required superficial layer has been designed. This new model of punch will help to identify the peripheral edge of the DMEK lenticule which in turn helps to excise the tissue exclusively, further reducing the donor tissue wastage, as seen with the current tissue preparation methods.