中国实用眼科杂志
中國實用眼科雜誌
중국실용안과잡지
CHINESE JOURNAL OF PRACTICAL OPHTHALMOLOGY
2010年
11期
1255-1258
,共4页
徐力%张晓云%林英%陈楚音
徐力%張曉雲%林英%陳楚音
서력%장효운%림영%진초음
白内障%散光%人工晶状体
白內障%散光%人工晶狀體
백내장%산광%인공정상체
Cataract%Astigmatism%Intraocular Lenses
目的 以两种不同位置的角膜切口设计手术,预测其对植入散光型人工晶状体(Acrysof toricIOL)手术计划的影响.方法 收集白内障专科拟行手术治疗的年龄相关性白内障患者1389例(1389只跟)的术前角膜曲率资料,双跟患者纳入第一发病眼,以0.50D作为手术源性散光值(Surgically induced astigmatism,SIA),分别以两种不同位置手术切口,即颞侧角膜切口(Temporal clear corneal incision,TCCI)或陡峭轴角膜切口(On-axis clear corneal incision,OCCI)进行手术设计,通过在线Acrysof toric IOL计算器运算,比较在本观察人群中两种手术设计的差异.结果 (1)Acrysof toric IOL预计植入率比较:OCCI组小于TCCI组,差异有统计学意义(x2=10.529,P=0.004).(2)Acrysof toric IOL植入手术预计散光矫正量比较:OCCI组高于TCCI组,差异有统计学意义(三种型号的Acrysof toric IOL:SN60T3、T4、T5的P值分别为0.000,0.000,0.001),而预计术后残留散光量两组差异无统计学意义(SN60T3、T4、T5的P值分别为0.760,0.560,0.594).结论 手术切口位置的不同选择可以影响Acrysof toric手术设计:OCCI设计有提高手术的散光矫正量,和减少散光型晶状体植入的可能.
目的 以兩種不同位置的角膜切口設計手術,預測其對植入散光型人工晶狀體(Acrysof toricIOL)手術計劃的影響.方法 收集白內障專科擬行手術治療的年齡相關性白內障患者1389例(1389隻跟)的術前角膜麯率資料,雙跟患者納入第一髮病眼,以0.50D作為手術源性散光值(Surgically induced astigmatism,SIA),分彆以兩種不同位置手術切口,即顳側角膜切口(Temporal clear corneal incision,TCCI)或陡峭軸角膜切口(On-axis clear corneal incision,OCCI)進行手術設計,通過在線Acrysof toric IOL計算器運算,比較在本觀察人群中兩種手術設計的差異.結果 (1)Acrysof toric IOL預計植入率比較:OCCI組小于TCCI組,差異有統計學意義(x2=10.529,P=0.004).(2)Acrysof toric IOL植入手術預計散光矯正量比較:OCCI組高于TCCI組,差異有統計學意義(三種型號的Acrysof toric IOL:SN60T3、T4、T5的P值分彆為0.000,0.000,0.001),而預計術後殘留散光量兩組差異無統計學意義(SN60T3、T4、T5的P值分彆為0.760,0.560,0.594).結論 手術切口位置的不同選擇可以影響Acrysof toric手術設計:OCCI設計有提高手術的散光矯正量,和減少散光型晶狀體植入的可能.
목적 이량충불동위치적각막절구설계수술,예측기대식입산광형인공정상체(Acrysof toricIOL)수술계화적영향.방법 수집백내장전과의행수술치료적년령상관성백내장환자1389례(1389지근)적술전각막곡솔자료,쌍근환자납입제일발병안,이0.50D작위수술원성산광치(Surgically induced astigmatism,SIA),분별이량충불동위치수술절구,즉섭측각막절구(Temporal clear corneal incision,TCCI)혹두초축각막절구(On-axis clear corneal incision,OCCI)진행수술설계,통과재선Acrysof toric IOL계산기운산,비교재본관찰인군중량충수술설계적차이.결과 (1)Acrysof toric IOL예계식입솔비교:OCCI조소우TCCI조,차이유통계학의의(x2=10.529,P=0.004).(2)Acrysof toric IOL식입수술예계산광교정량비교:OCCI조고우TCCI조,차이유통계학의의(삼충형호적Acrysof toric IOL:SN60T3、T4、T5적P치분별위0.000,0.000,0.001),이예계술후잔류산광량량조차이무통계학의의(SN60T3、T4、T5적P치분별위0.760,0.560,0.594).결론 수술절구위치적불동선택가이영향Acrysof toric수술설계:OCCI설계유제고수술적산광교정량,화감소산광형정상체식입적가능.
Objective To evaluate the expected effects of 2 types of clear corneal incisions used in phacoemulsification on surgical planning for the Acrysof toric intraocular lens (Acrysof toric IOL): the temporal and the on-axis (i.e on steeper corneal meridian) clear corneal incision (TCCI and OCCI, respectively). Methods Preoperative keratometric data were obtained from 1389 patients (1389 eyes) with cataract. Anticipated residual astigmatism and IOL type were calculated using 0.50 D a presumed surgery induced astigmatism (SIA)value in the Acrysof toric IOL Calculator for TCCI or OCCI, respectively. Difference of anticipated implantation rate and capacity of correct corneal astigmatism were analyzed. Results Compared the anticipated values between the two groups: 1) The OCCI could decrease the anticipated implantation rate of Acrysof toric IOL (x2 = 10.529, P =0.004); 2) The OCCI could raise the anticipated ability of Acrysof toric IOL implantation surgery to correct corneal astigmatism. The average amount of anticipated correct astigmatism was increased significantly (P value of 3 toric models: SN60T3, T4, T5 was 0.000, 0.000, 0.001, respectively), and the difference of average amount of anticipated residual astigmatism was not significant (P value of SN60T3, T4, T5 was 0.760, 0.560, 0.594, respectively). Conclusions In the designment period, the different choice of the incision location can affect the Acrysof toric IOL application. Compared with the TCCI, the OCCI can take advantage of the SIA to release preexisting corneal astigmatism without being affected by astigmatism type. As a result, the corneal astigmatism reduced by the OCCI can raise the anticipated capability to correct corneal astigmatism.The potential clinical significance is to reduce the implantation rate of Acrysof toric IOL.
