Table 1.
Estimated incidence of reported ectasia in each cornea refractive surgery type
| Refractive surgery | Avg total procedures per year | Ectatic eyes w/o RF* | Incidence of ectasia w/o RF (%) | Total ectatic eyes** | Total incidence of ectasia (%) |
|---|---|---|---|---|---|
| PRK | 283,920 | 57 | 0.020 | 70 | 0.025 |
| LASIK | 1,608,880 | 1453 | 0.090 | 1681 | 0.100 |
| SMILE | 96,750 | 11 | 0.011 | 19 | 0.020 |
PRK photorefractive keratectomy, LASIK laser-assisted in situ keratomileusis, SMILE small-incision lenticule extraction, w/o without, RF risk factors
*Ectatic eyes identified postoperatively without preexisting risk factors
**Ectatic eyes identified with and without preexisting risk factors