Corneal ectasia after LASIK (original) (raw)

Iatrogenic corneal ectasia after LASIK is a significant complication often preventable through the identification of risk factors. An analysis of 62 cases revealed that 78% occurred in eyes with form fruste keratoconus or after high myopic treatment resulting in a thin residual corneal bed (RCB), while 22% occurred in normal corneas with sufficient RCB but thin preoperative pachymetry. Factors such as a large optical zone (OZ) diameter were observed to influence ectasia incidence. Understanding the relationship between corneal thickness, OZ diameter, and ectasia development is essential for better risk assessment and management.