准分子激光角膜原位磨镶术后的增进手术

LASIK enhancement for correcting residual refraction error

目的 评价准分子激光角膜原位磨镶术 (excimer laser in situ keratom ileusis,L ASIK)后残留屈光度的增进手术的结果。方法 10 1例患者 (12 1只眼 )于 L ASIK术后平均 12 5± 6 3天后进行增进手术 ,L ASIK术前的平均屈光度为 - 10 .7± 4.8D(- 2 .5 D～ - 2 7.5 D) ,增进手术前平均屈光度为 - 2 .19± +2 .47D(- 11.88D～ +2 .2 5 D)。术后随访时间为第 1天、第 1周、3个月、6个月和 1年 ,平均随访时间为 2 77± 113天 ,增进手术前裸眼视力40只眼为 2 0 /4 0或更好 ,其中 11只眼为 2 0 /30 ,4只眼为 2 0 /2 5。结果 增进手术后平均屈光度为 - 0 .5 2± 1.2 3D(- 7D± 1.88D) ,110只眼术后裸眼视力有所提高 ,有 10 9只眼为 2 0 /4 0或更好 ,其中 2 3只眼为 2 0 /30 ,2 5只眼为2 0 /2 5 ,41只眼为 2 0 /2 0。结论 L A SIK增进手术对于减低 L ASIK术后的残留屈光度和改善裸眼视力是非常有效的。

Objective To evaluate the results of LASIK enhancement for residual refractive error.Method 121 eyes of 101 patinents had LASIK enhancement done after the original LASIK procedure mean 125±63 days,range from 32 days to 373 days.The mean pre-LASIK enhancement spherical equivalent(SE) is -10.7±4.83D,range from -2.50D to -27.5D.The mean pre-LASIK enhancement SE is -2.19±2.47D,range from -11.88D to +2.25D.Patients were followed at one day,one week,one month,three months,six months and one year.The mean follow-up period is 277±113 days range from 134 to 584 days.The uncorrected visual acuity (UCVA) of 40 eyes is 20/40 or better,11 eyes is 20/30,4eyes is 20/25.Results The mean post-LASIK enhancement SE is -0.52±1.23D,range from -7D to +1.88D.The UCVA of 110 eyes improved,109 eyes is 20/40 or better,23 eyes is 20/30,25 eyes is 20/25,41 eyes is 20/20.Conclusion LASIK enhancement is effective to reduce the residual refractive error and improve the UCVA after LASIK.