“…The available surgical options include keratectomy and keratoplasty, conjunctival flaps, tarsorraphy, collagen cross-linking and the amniotic membrane transplantation (Pires et al 1999, Ortiz et al 2011, Maggs et al 2013, Zhao et al 2013, Spiess et al 2014, Pot et al 2015, Famose 2014.…”