Simultaneous laser in situ keratomileusis on the stromal bed and undersurface of the flap in eyes with high myopia and thin corneas.
OBJECTIVE
To evaluate simultaneous laser in situ keratomileusis (LASIK) on the stromal bed and the undersurface of the flap in eyes with high myopia and insufficient corneal thickness for conventional LASIK ablation.


METHODS
21 Century Eye Hospital, Seoul Paik Hospital, Inje University, Seoul, Korea.


METHODS
Using intraoperative pachymetry, the residual stromal bed thickness was evaluated and simultaneous LASIK was performed on the stromal bed and undersurface of the flap without compromising the posterior 300 mum of the stromal bed. In a prospective series, outcomes in 43 eyes of 27 patients with mean spherical equivalent refraction ranging from -12.5 to -3.75 diopters were analyzed 1, 3, and 6 months after surgery.


RESULTS
Postoperative uncorrected visual acuity was 20/30 or better in 35 eyes (81.4%) at 1 month, 36 eyes (83.7%) at 3 months, and 34 eyes (79.1%) at 6 months. During surgery and follow-up, no vision-threatening complications occurred.


CONCLUSIONS
Simultaneous LASIK appears to be a useful surgical aid in LASIK treatment in eyes with high myopia with or without astigmatism when an adequate residual stromal bed does not exist.
Joo
Myung-Jin
MJ
21C Eye Hospital, Seoul Paik Hospital, Inje University, Jeo-Dong, Jung-Gu, Seoul, Korea.
Kim
Ye-Ni
YN
Hong
Hyo-Chang
HC
Ryu
Dong-Kyu
DK
Kim
Jae-Ho
JH
D000328:Adult; D001251:Astigmatism / Q000150:complications / Q000503:physiopathology; D003315:Cornea / Q000473:pathology*; D003319:Corneal Stroma / Q000601:surgery*; D006801:Humans; D020731:Keratomileusis, Laser In Situ / Q000009:adverse effects; D008875:Middle Aged; D009216:Myopia / Q000150:complications / Q000473:pathology / Q000503:physiopathology* / Q000601:surgery*; D011379:Prognosis; D011446:Prospective Studies; D012029:Refraction, Ocular; D012720:Severity of Illness Index; D013524:Surgical Flaps; D014792:Visual Acuity