准分子激光原位角膜磨镶术中角膜缘出血的临床探讨

Clinical study of corneal limbal bleeding in excimer laser in situ keratomileusis

目的:探讨LASIK术中出血的原因、影响及防治。方法:观察了466例929眼接受手术时发生出血病例的情况及出血对术后效果的影响。结果:466例929眼手术者发生角膜缘出血者57眼,发生率为6.1%,术后0.5mo时,角膜缘出血的57眼中发生过矫者33眼,欠矫15眼,不规则散光7眼。其中9眼接受2次手术。探讨了出血发生的原因及预防措施。结论:LASIK术中角膜缘出血可影响手术效果,应引起高度重视。

AIM： To study the causes, influences, prevention and treatment of corneal limbal bleeding in excimer laser in situ keratomileusis （LASIK）. METHODS： The cases of corneal limbal bleeding were observed when LASIK was performed in 929 eyes of 466 patients and the influences were investigated after LASIK. RESULTS： The 57 eyes （6. 1%） with limbal bleeding were found Tn 929 eyes of patients. When it was the time of half a month after operation, the overcorrection in 33 eyes, the undercorrection in 15 eyes and irregular astigmatism occurred in 7 eyes. In the 57 eyes, 9 eyes were performed again by LASIK. The causes and defending measures of limbal bleeding were discussed. CONCLUSION ： The limbal bleeding will affect the effect when LASIK was performed, and it should be attached much importance.