1. Jacob S (ed) (2016) Mastering endothelial keratoplasty, DSAEK, DMEK, E-DMEK, PDEK, air pump-assisted PDEK and others, vol I. Springer, India
2. Matthaei M, Sandhaeger H, Hermel M, Adler W, Jun AS, Cursiefen C, Heindl LM (2017) Changing indications in penetrating keratoplasty: a systematic review of 34 years of global reporting. Transplantation 101(6):1387–1399. https://doi.org/10.1097/TP.0000000000001281
3. Tan DT, Dart JK, Holland EJ, Kinoshita S (2012) Corneal transplantation. Lancet 379(9827):1749–1761. https://doi.org/10.1016/S0140-6736(12)60437-1
4. Keane M, Coster D, Ziaei M, Williams K (2014) Deep anterior lamellar keratoplasty versus penetrating keratoplasty for treating keratoconus. Cochrane Database Syst Rev 7:eCD009700. https://doi.org/10.1002/14651858.CD009700.pub
5. Watson SL, Ramsay A, Dart JK, Bunce C, Craig E (2004) Comparison of deep lamellar keratoplasty and penetrating keratoplasty in patients with keratoconus. Ophthalmology 111(9):1676–1682. https://doi.org/10.1016/j.ophtha.2004.02.010