中华眼视光学与视觉科学杂志
中華眼視光學與視覺科學雜誌
중화안시광학여시각과학잡지
CHINESE JOURNAL OF OPTOMETRY OPHTHALMOLOGY AND VISUAL SCIENCE
2011年
2期
144-147
,共4页
涂云海%俞阿勇%宥永胜%高潮%吴文灿
塗雲海%俞阿勇%宥永勝%高潮%吳文燦
도운해%유아용%유영성%고조%오문찬
晶体,人工%度数计算%散光%矢量分析
晶體,人工%度數計算%散光%矢量分析
정체,인공%도수계산%산광%시량분석
Lenses,intraocular%Power calculation%Astigmatism%Vector analysis
目的 评价改良SRK-T公式对球面人工晶状体植入术后预测散光的可行性及其误差的影响因素,以探讨改良SRK-T公式在散光人工晶状体度数计算中的应用价值.方法 回顾性系列病例研究.分析2007年10月至2008年6月行超声乳化白内障摘除联合球面人工晶状体植入术且资料完整的白内障病例68例(106眼).比较改良SRK-T公式与SRK-T公式计算得出的术后预测等效屈光度数之间的差异.矢量分析改良SRK-T公式预测的术后散光度与实际术后散光度之间的差异,并采用多元线性回归分析其影响因素.结果 改良SRK-T公式与SRK-T公式计算得出的术后预测等效屈光度结果完全吻合.矢量分析术后散光预测误差结果示:J0预测误差的因素主要是角膜散光(KS),J0=-0.108-0.102×KS(P＝0.034).J45预测误差的因素主要是眼轴(L)与角膜平均屈光度(K),J45=1.797-0.019×L-0.031×K(P=0.009).结论 改良SRK-T公式的方法可以用于散光人工晶状体植入度数的计算,其误差跟角膜散光、眼轴、角膜平均屈光度有关.
目的 評價改良SRK-T公式對毬麵人工晶狀體植入術後預測散光的可行性及其誤差的影響因素,以探討改良SRK-T公式在散光人工晶狀體度數計算中的應用價值.方法 迴顧性繫列病例研究.分析2007年10月至2008年6月行超聲乳化白內障摘除聯閤毬麵人工晶狀體植入術且資料完整的白內障病例68例(106眼).比較改良SRK-T公式與SRK-T公式計算得齣的術後預測等效屈光度數之間的差異.矢量分析改良SRK-T公式預測的術後散光度與實際術後散光度之間的差異,併採用多元線性迴歸分析其影響因素.結果 改良SRK-T公式與SRK-T公式計算得齣的術後預測等效屈光度結果完全吻閤.矢量分析術後散光預測誤差結果示:J0預測誤差的因素主要是角膜散光(KS),J0=-0.108-0.102×KS(P＝0.034).J45預測誤差的因素主要是眼軸(L)與角膜平均屈光度(K),J45=1.797-0.019×L-0.031×K(P=0.009).結論 改良SRK-T公式的方法可以用于散光人工晶狀體植入度數的計算,其誤差跟角膜散光、眼軸、角膜平均屈光度有關.
목적 평개개량SRK-T공식대구면인공정상체식입술후예측산광적가행성급기오차적영향인소,이탐토개량SRK-T공식재산광인공정상체도수계산중적응용개치.방법 회고성계렬병례연구.분석2007년10월지2008년6월행초성유화백내장적제연합구면인공정상체식입술차자료완정적백내장병례68례(106안).비교개량SRK-T공식여SRK-T공식계산득출적술후예측등효굴광도수지간적차이.시량분석개량SRK-T공식예측적술후산광도여실제술후산광도지간적차이,병채용다원선성회귀분석기영향인소.결과 개량SRK-T공식여SRK-T공식계산득출적술후예측등효굴광도결과완전문합.시량분석술후산광예측오차결과시:J0예측오차적인소주요시각막산광(KS),J0=-0.108-0.102×KS(P＝0.034).J45예측오차적인소주요시안축(L)여각막평균굴광도(K),J45=1.797-0.019×L-0.031×K(P=0.009).결론 개량SRK-T공식적방법가이용우산광인공정상체식입도수적계산,기오차근각막산광、안축、각막평균굴광도유관.
Objective To evaluate the feasibility and the factors of prediction error of astigmatism after intraocular lens (IOL) implantation by modified SRK-T, and to study the value of modified SRK-T using for toric intraocular lens power calculation. Methods Retrospective case seriesstudy. This study included 68 patients (106 eyes) underwent phacoemulsification during Oct 2007 to June 2008 in Eye hospital of Wenzhou Medical College. The result of the spherical equivalent calculated by SRK-T and modified SRK-T was compared, and the astigmatism error predicted by modified SRK-T and subjective refraction was compared with vector analysis. Influencing factor of modified SRK-T was analyzed with a multivariate linear regression analysis. Results Spherical equivalent calculated by modified SRK-T and SRK-T was equal. The factors of prediction error in J0 was astigmatism of cornea (KS),J0=-0.108-0.102×KS (P=0.034); and in J45 was axial length (L) and average refraction of cornea (K),J45=1.797-0.019×L-0.031×K (P=0.009). Conclusion Modified SRK-T is a good option for toric intraocular lens power calculation. The influencing factors of prediction include Ks, L and K.
