本文選題：角膜散光 + 散光補(bǔ)償�。� 參考：《遵義醫(yī)學(xué)院》2016年碩士論文

【摘要】：目的:通過(guò)測(cè)量和比較近視眼睫狀溝直徑的大小,分析角膜散光方向與睫狀溝最大直徑分布的關(guān)系,探討近視眼角膜源性散光的補(bǔ)償機(jī)理。方法:選取來(lái)我院眼科近視眼白內(nèi)障中心就診的近視患者44例(58眼)。根據(jù)角膜前表面散光大小不同,將近視眼分為A、B兩組。A組角膜散光(CA)≤1.00D,B組1.0CA≤2.50D。用超聲生物顯微鏡測(cè)量各30、60、90、120、150、180度6個(gè)不同子午線方向睫狀溝直徑,角膜地形圖檢查角膜散光狀態(tài)。結(jié)果:A組角膜最大屈光力子午線方向與睫狀溝最大直徑的方向重合率小于B組。行卡方檢驗(yàn)差異有統(tǒng)計(jì)學(xué)意義(P=0.03)。方差分析分別比較A組、B組6個(gè)方向的睫狀溝直徑結(jié)果提示:A組60、90、120度方向睫狀溝直徑明顯比30、150、180度方向大,60、90、120三個(gè)方向無(wú)明顯差異,30、150、180度三個(gè)方向無(wú)明顯差異。B組90度方向睫狀溝直徑明顯比其他各個(gè)方向的大。結(jié)論:在順規(guī)性近視散光中,隨角膜散光增加睫狀溝最大直徑方向有向垂直方向集中的趨勢(shì)。這種變化可能是晶狀體對(duì)角膜源性散光補(bǔ)償作用而形成的。
[Abstract]:Objective: by measuring and comparing the diameter of the ciliary sulcus in myopia, the relationship between the direction of corneal astigmatism and the maximum distribution of ciliary sulcus was analyzed, and the compensation mechanism of corneal astigmatism was discussed. Methods: 44 myopia patients (58 eyes) were selected from the cataract center of the ophthalmology of our hospital. The size of astigmatism in the anterior corneal surface was not In the same way, the myopia was divided into A, B two group.A group corneal astigmatism (CA) less than 1.00D, B group 1.0CA < 2.50D. to measure the diameter of each 30,60,90120150180 degree of the ciliary sulcus with the ultrasonic biological microscope, and the corneal astigmatism. Results: the direction of the maximum corneal flexion meridian and the direction of the maximum diameter of the ciliary sulcus in the A group. The coincidence rate was less than the B group. The difference of the chi square test was statistically significant (P=0.03). The variance analysis was compared with the A group. The ciliary groove diameter in the 6 direction of group B indicated that the diameter of the ciliary sulcus in the A group was significantly larger than the 30150180 degree direction, and there was no significant difference in the three directions of 60,90120, and there was no significant difference between the three directions of the 30150180 degree and the three direction of the 90 degrees of the.B group. The diameter of the ciliary sulcus is significantly larger than that in the other directions. Conclusion: the trend of centralization in the direction of maximum diameter of ciliary sulcus with corneal astigmatism in astigmatism with corneal astigmatism is likely to be formed by the effect of lens on corneal astigmatism.
【學(xué)位授予單位】：遵義醫(yī)學(xué)院
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類(lèi)號(hào)】：R782.2

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