本文關鍵詞： 球面像差 非球面人工晶狀體 調(diào)制傳遞函數(shù) 最佳矯正球差　出處：《眼科新進展》2016年11期 　論文類型：期刊論文

【摘要】：目的比較個性化選擇0、-0.20μm、-0.27μm三種不同球差非球面人工晶狀體(intraocular lens,IOL)及其隨機植入術后的視覺質(zhì)量,探討最佳矯正球差值。方法前瞻性病例對照研究。選取就診于我科的白內(nèi)障患者125例(145眼),術前使用i Trace全視覺功能分析儀測量角膜高階像差,根據(jù)角膜球差(spherical aberation,SA)值的不同分為A、B、C三組,分別植入三種不同SA非球面IOL,對照組(D組)隨機植入非球面IOL。術后3個月分析全眼及角膜的高階像差、調(diào)制傳遞函數(shù)(modulation transfer function,MTF)、斯泰爾比值(Strehl ratio,SR)、最佳矯正視力(best corrected visual acuity,BCVA)。結果 (1)手術前后角膜SA差異無統(tǒng)計學意義(P0.05),全眼慧差(Coma)、三葉草差(Trefoil)及總高階像差(total high order aherration,t HOA)手術前后的變化與角膜SA的變化相似。(2)三組患者BCVA差異無統(tǒng)計學意義(P0.05)。(3)3 mm瞳孔直徑下,四組IOL眼的角膜SA、全眼MTF t HOA及SR差異均無統(tǒng)計學意義(均為P0.05);全眼SA差異有統(tǒng)計學意義(P=0.019),A組、B組、C組間差異無統(tǒng)計學意義(P0.05),但均D組(P=0.000)。(4)5 mm瞳孔直徑下,四組IOL眼角膜SA差異無統(tǒng)計學意義(P0.05);全眼SA、t HOA差異均有統(tǒng)計學意義(均為P=0.000),A、B、C三組間差異無統(tǒng)計學意義(P0.05),但均D組(P=0.000);全眼MTF t HOA及SR差異均有統(tǒng)計學意義(均為P0.05),A、B、C三組間差異無統(tǒng)計學意義(P0.05),但均D組(P=0.000)。結論超聲乳化白內(nèi)障吸出術前后角膜高階像差無差異。小瞳孔直徑下,不同SA設計非球面IOL眼術后視覺質(zhì)量比較無差異。大瞳孔直徑下,根據(jù)術前SA個性化選擇較隨機植入非球面IOL眼可獲得較好的視覺質(zhì)量。
[Abstract]:Objective to compare the three different spherical aberrations of aspherical intraocular lens (IOL) between 0 and 0. 20 渭 m and 0. 27 渭 m. IOL) and its visual quality after random implantation, to explore the best corrected ball difference. Methods A prospective case-control study was conducted. 125 cataract patients (145 eyes) were selected from our department. The high-order aberration of cornea was measured by using I Trace total visual function analyzer before operation. According to the different values of spherical aberration of cornea, Agna B was divided into two groups. In group C, three different kinds of SA aspheric IOLs were implanted, and the control group (group D) were randomly implanted with aspheric IOL. The high order aberrations of the eyes and cornea were analyzed 3 months after operation. Modulation transfer function (transfer). Best corrected visual acuity. Results (1) there was no significant difference in corneal SA before and after operation (P 0.05, Coma). Total high order aherration. The change of BCVA before and after operation was similar to that of corneal SA. There was no significant difference in BCVA between the three groups under the pupil diameter of 3 mm. There was no significant difference in MTF t HOA and SR between the four groups of IOL eyes (P 0.05). There was no significant difference in total eye SA between group A and group B (P 0.05). However, there was no significant difference in corneal SA between group D and group D (P 0.05) under the pupil diameter of 5 mm. There was no significant difference among the three groups (P 0. 05%, P 0. 05%), but there was no significant difference among the three groups (P 0. 05%, P 0. 000, P 0. 000, P 0. 000, P 0. 000, P 0. 000, P 0. 000, P 0. 000, P 0. 000). The difference of MTF t HOA and SR in all eyes was statistically significant (P 0.05). There was no significant difference among the three groups (P 0.05). Conclusion there is no difference in high order aberration of cornea before and after phacoemulsification. There was no difference in visual quality between different SA designs for aspherical IOL eyes. Under the large pupil diameter, better visual quality could be obtained according to the individualized choice of preoperative SA than by random implantation of aspherical IOL eyes.
【作者單位】： 昆明醫(yī)科大學第二附屬醫(yī)院眼科;
【基金】：云南省應用基礎研究面上項目(編號:2014FZ030)~~
【分類號】：R779.6
【正文快照】： 隨著手術技術及人工晶狀體(intraocular lens,IOL)的改良和發(fā)展,白內(nèi)障患者對術后的視覺質(zhì)量要求不再局限于“看得見”,而是要求持久舒適地“看清楚”。部分患者術后最佳矯正視力(best corrected visual acuity,BCVA)良好,但出現(xiàn)夜間視力差、光暈、眩光等癥狀,研究發(fā)現(xiàn)與像差

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