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目的 :探讨青壮年近视患者高阶像差的分布、影响因素及对视功能的影响。方法 :使用Allegretto波阵面像差仪对180例 (35 6只眼 ) (屈光度 - 0 5 0～ - 13 0 0D)拟行LASIK治疗的患者术前进行波阵面像差测量分析 ,并比较瞳孔大小、性别、屈光状态、最佳矫正视力 (BSCVA)等因素对高阶像差的影响。结果 :在 6 5mm和 4 0mm瞳孔直径时 ,95 %的近视患者高阶像差的均方根值 (RMSh)的分布范围分别为 0 0 9～ 0 30 μm和 0 0 3～ 0 14 μm ;RMSh、RMS3、RMS4值分别为 (0 19± 0 0 6 ) μm和 (0 0 9± 0 0 3) μm、(0 14± 0 0 6 ) μm和 (0 0 7± 0 0 3) μm、(0 0 9± 0 0 4 ) μm和 (0 0 4± 0 0 2 ) μm ;差异均有统计学意义 (P <0 0 5 ) ;高阶主导像差均以 3阶为著 ,分别占 80 %和 83% ,并以C7为最高。瞳孔增大后 ,球差、彗差比率增加。在 6 5mm瞳孔直径时 ,不同类型的高阶主导像差对BSCVA无影响 (P >0 0 5 )。高阶像差的RMS值与BSCVA呈负相关 (P <0 0 5 )。不同屈光度组高阶像差差异无统计学意义 (P >0 0 5 )。在 6 5mm瞳孔直径时 ,高度散光组的RMS4、RMS6高 ,而在 4 0mm瞳孔直径时 ,高度及低度散光组的RMS3、RMSh高于无散光组 (P <0 0 5 )。性别对高阶像差无影响 (P >0 0 5 )。?
Objective: To investigate the distribution of high-order aberrations, the influencing factors and the visual function of young adults with myopia. METHODS: 180 patients (356 eyes) (diopter - 050 ~ - 1300D) undergoing LASIK were treated with Allegretto wavefront aberrometer before wavefront aberration analysis and comparison Pupil size, gender, refractive status, best corrected visual acuity (BSCVA) and other factors on higher-order aberrations. Results: RMSh of high myopic aberrations ranged from 0 0 9 to 0 30 μm and from 0 0 3 to 0 14 μm for 95% of myopia at 6 mm and 4 0 mm pupil diameters, respectively. RMSh, RMS3 and RMS4 values were (0 19 ± 0 0 6) μm and (0 0 9 ± 0 0 3) μm, 0 14 ± 0 0 6 and 0 0 7 ± 0 0 3 μm respectively, (0 0 9 ± 0 0 4) μm and (0 0 4 ± 0 0 2) μm, respectively. The differences were statistically significant (P 0 05) 80% and 83%, and C7 is the highest. Pupil increases, the spherical aberration, coma ratio increased. At 6 mm pupil diameter, different types of high-order dominant aberrations had no effect on BSCVA (P> 0.05). The RMS value of higher-order aberrations was negatively correlated with BSCVA (P <0 05). There was no significant difference in higher-order aberrations between different diopter groups (P> 0.05). At 6 mm pupil diameter, the RMS4 and RMS6 were higher in the astigmatism group and RMS3 and RMSh in the height and low astigmatism group were higher than those in the non-astigmatism group (P <0 05) at the pupil diameter of 40 mm. Gender had no effect on higher-order aberrations (P> 0.05). ?