Summary of results from various big-bubble DALK studies
| Authors | Year | Number of eyes | Indication | BCVA ≥20/40 (%) | Perforation rate (%) | Rejection (%) |
| Anwar and Teichmann69 | 2002 | 181 | Keratoconus | Not reported | 9 | None reported |
| Al-Torbak et al83 | 2006 | 127 | Keratoconus | 75 | 13 | 3 |
| Fogla et al84 | 2006 | 13 | Keratoconus | 100 | 15 | None |
| Bahar et al85 | 2008 | 17 | Keratoconus | 100 | 7.6 | 7.6 |
| Fontana et al71 | 2007 | 81 | Keratoconus | 100 | 13 | 2 |
| Feizi et al86 | 2010 | 129 | Keratoconus | 78 | 4 | 14.3 |
BCVA, best-corrected visual acuity; DALK, deep lamellar keratoplasty.