Nuances involved in creation of type 1 bubble in pre-Descemet’s endothelial keratoplasty

Pre-Descemet’s endothelial keratoplasty is a variant of endothelial keratoplasty and involves the creation of a type 1 bubble with a 30-gauge needle attached to an air-filled 5 mL syringe. This procedure has a theoretical advantage of safer manipulation of tissue and greater ease of deployment than has been encountered during traditional Descemet’s membrane endothelial keratoplasty.