Outcomes of retreatment after laser in situ keratomileusis.
OBJECTIVE
To evaluate the safety and efficacy of retreatment after myopic laser in situ keratomileusis (LASIK).


METHODS
Retrospective, noncomparative case series.


METHODS
A total of 962 eyes of 566 patients underwent LASIK for up to -20.0 diopters (D) of myopia, of which 53 eyes (5.5%) were retreated.


METHODS
Retreatments were performed by lifting the original flap and using the Nidek EC-5000 excimer laser (Nidek Inc., Tokyo, Japan).


METHODS
Uncorrected visual acuity (UCVA), best spectacle-corrected visual acuity (BCVA), fogged manifest refraction, and complications were evaluated 6 months after retreatment.


RESULTS
Overall, 53 (5.5%) of 962 eyes underwent LASIK retreatment. Before retreatment, the mean spherical equivalent (MSE) was -1.7 +/- 1.1 D (range, +0.3 to -5.0 D), UCVA ranged from 20/25 to 20/400, and BCVA ranged from 20/20 to 20/50. Six months after retreatment, the MSE was -0.09 +/- 0.29 D, 48 (90.6%) eyes were within +/-0.5 D, and all eyes were within +/-1.0 D of the attempted correction. The UCVA improved to 20/20 or better in 21 (39.6%) eyes and 20/40 or better in 51 (96.2%) eyes. The BCVA was maintained in 33 eyes (62.3%), 15 eyes (28.3%) gained 1 line or more of vision, whereas 5 eyes (9.4%) lost 1 line. All eyes had a BCVA of 20/50 or better. No retreated eye lost two or more lines of BCVA. No complications were observed.


CONCLUSIONS
Retreatment for low amounts of residual myopia performed by lifting the original flap within the first year after surgery after myopic LASIK is safe, effective, and predictable.
Zadok
D
D
Centro Ophtalmologico de Tijuana, BC, Mexico. dzadok@yahoo.com
Maskaleris
G
G
Garcia
V
V
Shah
S
S
Montes
M
M
Chayet
A
A
D000293:Adolescent; D000328:Adult; D003315:Cornea / Q000601:surgery*; D005260:Female; D006801:Humans; D020731:Keratomileusis, Laser In Situ; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000601:surgery*; D012086:Reoperation; D012189:Retrospective Studies; D012449:Safety; D013524:Surgical Flaps; D016896:Treatment Outcome; D014792:Visual Acuity