Journal of the Korean Ophthalmological Society 1999;40(9):2458-2463.
Published online September 1, 1999.
Clinical Result of 105 Cases Overcorrected Temporally after LASIK: 6 Months follow-up.
Sung Won Byun, Choun Ki Joo
Department of Ophthalmology, Kangnam St.Mary`s Hospital, The Catholic University Medical College, Seoul, Korea.
LASIK후 일시적으로 과교정된 105안의 임상성적:6개월 추적관찰
변성원(Sung Won Byun),주천기(Chou Ki Joo)
This study aimed to evaluate the refractive and visual results of the cases temporally overcorrected after laser in situ keratomileusis (LASIK). Among 582 myopic eyes that underwent LASIK using VISX STAR from March 1997 to October 1998, 105 eyes were overcorrected more than one diopter (D) one week after LASIK. 105 eyes were divided into three groups according to their spherical equivalent (SE) at one week: Group l (> or = 3D, 9 eyes), group ll (2-2.9D, 14 eyes), and group lll (1-1.9D, 82 eyes).Uncorrected visual acuity (UCVA), best corrected visual acuity (BCVA), SE, and complications were studied one day, one week, two months, and six months after LASIK. The mean preoperative SE was -11.17 +/-2.57D in group l,-9.40 +/-2.91D in group lland -8.09 +/-1.92D in group lll. At 6 months, the mean SE was 1.81 +/-1.61D, 0.04 +/-0.43D and -0.37 +/-0.76D in group l, ll and lll, respectively. The mean regression of SE from one day to six months was 1.85D, 2.27D and 1.73D in group l,ll and lll, respectively (p>0.05). The proportion of eyes that lost two or more lines of UCVA after LASIK compared to preoperative BCVA was 33.3% in group l, 10% in group ll, and 9.2% in group lll. There were central island (5 eyes), capsular wrinkling (3 eyes), free cap (1 eye), subepithelal metalic debris (1 eye), epithelial ingrowth (1 eye)as complications in all groups. With these results it might be concluded that hyperopia less than 3D one week after LASIK is temporary and disappears 6 months after surgery without any additional treatment, whereas hyperopia equal or more than 3D one week after LASIK still showed hyperopic refraction even after 6 months. Therefore, these eyes need further evaluation for the correction of hyperopia.
Key Words: Laser in situ keratomileusis(LASIK);Overcorrection;VISX STAR

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