薛桂華


【摘要】 目的:探討近視散光患者行Alpins矢量分析法分析經上皮準分子激光角膜切削術的價值。方法:回顧性分析筆者所在醫院收治的實施經上皮準分子激光角膜切削術患者90例(180眼)臨床資料,按照全眼散光中角膜散光所占比例劃分為三組,每組30例。行Alpins矢量分析法分析三組手術前后散光相關指標。結果:角膜源性散光組術后UCVA、UCVA≥術前BCVA比例高于眼內源性散光組、混合源性散光組,且混合源性散光組高于眼內源性散光組,差異均有統計學意義(P<0.05)。角膜源性散光組術后殘留散光度低于眼內源性散光組、混合源性散光組,且混合源性散光組低于眼內源性散光組,差異均有統計學意義(P<0.05)。角膜源性散光組CR、SIRC高于眼內源性散光組、混合源性散光組,且混合源性散光組高于眼內源性散光組,差異均有統計學意義(P<0.05)。角膜源性散光組EA、EM、ER、EV、IRC、ISV、IVA低于眼內源性散光組、混合源性散光組,且混合源性散光組低于眼內源性散光組,差異均有統計學意義(P<0.05)。結論:經上皮準分子激光角膜切削術患者行Alpins矢量分析法分析可知,角膜源性散光的矯正效果最理想。
【關鍵詞】 近視散光 Alpins矢量分析法 上皮準分子激光角膜切削術
[Abstract] Objective: To evaluate the value of Alpins vector analysis in patients with myopic astigmatism for transepithelial excimer laser keratectomy. Method: Retrospective analysis was performed on clinical data of 90 patients (180 eyes) admitted in our hospital who underwent transepithelial excimer laser keratectomy. The patients were divided into three groups according to the proportion of corneal astigmatism in total eye astigmatism, with 30 cases in each group. Alpins vector analysis was performed to analyze the related indexes of astigmatism before and after operation in the three groups. Result: The postoperative UCVA and proportion of UCVA≥ preoperative BCVA of the corneal astigmatism group were higher than those of the endogenous astigmatism group and the mixed astigmatism group, and the mixed astigmatism group were higher than those in the endogenous astigmatism group, the differences were statistically significant (P<0.05). The postoperative residual astigmatism in the corneal astigmatism group was lower than that in the endogenous astigmatism group and the mixed astigmatism group, and the mixed astigmatism group was lower than that in the endogenous astigmatism group, the differences were statistically significant (P<0.05). The CR, SIRC of the corneal astigmatism group were higher than those of the endogenous astigmatism group and the mixed astigmatism group, and the mixed astigmatism group were higher than those of the endogenous astigmatism group, the differences were statistically significant (P<0.05). The EA, EM, ER, EV, IRC, ISV, IVA in the corneal astigmatism group were lower than those in the endogenous astigmatism group and the mixed astigmatism group, and the mixed astigmatism group were lower than those in the endogenous astigmatism group, the differences were statistically significant (P<0.05). Conclusion: Alpins vector analysis of patients undergoing transepithelial excimer laser keratectomy shows that the correction effect of corneal astigmatism is the best.
本次研究工作中,按照全眼散光中角膜散光所占比例將90例(180眼)實施經上皮準分子激光角膜切削術患者進行分組,劃分為角膜源性散光組、眼內源性散光組、混合源性散光組,每組30例(60眼),并均實施一般檢查方法、Pentacam檢測方法、手術、術后隨訪、角膜散光測量及標準矢量分析方法。同時,本次研究工作中觀察范圍指標包括Pentacam所測得角膜前表面ISV指標、IVA指標,從而尋找其與散光來源之間關系。從本次研究結果數據可知,角膜源性散光組術后UCVA、UCVA≥術前BCVA比例、CR、SIRC均高于眼內源性散光組、混合源性散光組(P<0.05),且混合源性散光組高于眼內源性散光組(P<0.05)。角膜源性散光組術后殘留散光度、EA、EM、ER、EV、IRC、ISV、IVA均低于眼內源性散光組、混合源性散光組(P<0.05),且混合源性散光組低于眼內源性散光組(P<0.05)。研究結果提示,運用Alpins矢量分析法分析顯示,經上皮準分子激光角膜切削術更適合運用于角膜前表面散光矯正;而且,角膜源性散光矯正準確性最高,而眼內源性散光矯正準確性則最差。同時,眼內散光主要是晶狀體,而隨著年齡增加,晶狀體形態、晶狀體密度均不斷變化,致使眼內散光大小、軸向均隨之逐漸變化[9-10]。因此,如果眼內散光為主者,年齡合適,則更適宜選擇眼內屈光手術矯正[11]。
綜上所述,臨床結合經上皮準分子激光角膜切削術的近視散光患者的疾病特點,運用Alpins矢量分析法分析可知,該治療方法的角膜源性散光矯正效果最理想,而眼內源性散光矯正效果則最差,有重要臨床應用價值。
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(收稿日期:2019-12-24) (本文編輯:桑茹南)