| Short Term Follow-Up Results of LASIK(laser in-situ keratomileusis) for Correction of High Myopia. |
|
Dong Ho Lee, Tae Hoon Choi, Ha Bum Lee |
|
Department of Ophthalmology, College of Medicine, Hallym University, Seoul, Korea. |
| 고도근시환자에서 시행한 레이저 각막절삭가공성형술 ( LASIK ) 의 단기간 추적관찰결과 |
|
이동호(Dong Ho Lee),최태훈(Tae Hoon Choi),이하범(Ha Bum Lee) |
|
|
|
|
| Abstract |
|
We have performed LASIK to correct the visual acuity in high myopes who were more than -8.0 diopter(spherical equvalent) and were intolerent to the wearing spectacles or contact lens. To evaluate the effect of LASIK on the correction of the myopia, 51 eyes with 6 months follow up were analyzed. Follow-up evaluations were done at 2 days, 2 weeks, 1 month, 2 months, 3 months, 6 months. The preoperative spherical equivalent refraction ranged from -8.00 to -35.00 diopter(average; -12.86 5.67). The attempted correction ranged from -6.0 to -30.0 diopter(average; -12.16 5.07). The average uncorrected visual acuity was statistically significantly increased from 0.08 to 0.78(p<0.05) but the change of spectacle-corrected visual acuity was statistically not significant(p>0.05). The incidence of decreased best corrected visual acuity 2 lines or more after LASIK were 19.6% at 1 month, 17.6% at 2 months, 3.9% at 3 months and 3.9% at 6 months respectively. The causes of decreased best corrected visual acuity were irregular astigmatism and central island. Postoperative refraction showed slight regression of -1.72 diopter throughout the follow-up period. The preoperative refractive astigmatism was -2.39 diopter, but postoperative refractive astigmatism was stabilized within 0.5 diopter throughout the followed-up period. The postoperative refractions within 0.5 diopter were 21.6% at 1 months, 7.8% at 3 months, 15.6% at 6 months; within 1.0 diopter were 41.2% at 1 months, 43.1% at 3 months, 46.7% at 6 months; within 2.0 were 66.7% at 1 months, 68.6% at 3 motnhs, 75.6% at 6 months. The mean corneal haze at 1, 2, 3, 6 months were within grade 0.5(0 to 4 scale). LASIK, although more complicated because of the use of a microkeratome, was thought to be more effective than PRK in higher myopes. In conclusion, further investigation and long-term studies are needed to confirm the safety, efficacy, stability, predictability of this new technique. |
| Key Words:
LASIK;Laser in-situ keratomileusis;High myopia |
|
PDF Links
Download Citation
