Table 1.

Characteristics of patients with late onset corneal ectasia after LASIK surgery.

Number of patients	19 (29 eyes)
Mean age (years) ± SD	35 ± 6 years
Age range	27–45 years
Mean follow-up period ± SD	108 ± 23 months
Gender
Male	13 patients
Female	6 patients
Mean onset of ectasia after LASIK (months ± SD)	57 ± 24 months
Mean post-operative residual corneal stromal bed thickness	288 ± 35 μm
Range of post-operative residual corneal stromal bed thickness	260–365 μm

SD = standard deviation.