near visual acuity

uncorrected visual acuity (ucva) and near visual acuity (nva) improved significantly in all patients who underwent lasik.

结果发现所有病人的近距离视力和非矫正视力在接受雷射后都获得改善。

And after using visual aid in near visual acuity, 86.84% cases' near visual acuity were no less than 0.5.Conclusion The main etiology of visual acuity in the juvenile's group are congenital and inherited diseases and in the adult's group is high myopia.

配戴近用助视器后，近视力≥0.5的病例占总数的86.84%。结论先天性、遗传性疾病是少儿组视力残疾的主要病因，高度近视是成人组视力残疾的主要病因。

examination included far and near visual acuity test, eye refractive status ( based on retinoscopy, with 1% atropine cycloplegia), eye fundus, corneal curvature, eye axial length.

观察指标：远视力、近视力、屈光（用1%阿托品）、眼底、角膜曲率、眼轴。

the distant and near visual acuity, anterior chamber aqueous protein concentration, contrast sensitivity and complications were observed.

观察患者术后的远近视力、前房蛋白浓度、对比敏感度及并发症。

results: 24.5% children with low vision obtained far visual acuity ≥ 0.5 and 54.5% near visual acuity ≥ 0.5 after using far and near low vision devices.

结果：低视力患儿配戴远用和近用助视器后，24.5%远视力≥0.5；54.5%的近视力≥0.5。

results there was a significant difference in near visual acuity between the two groups.

结果两组近视力比较，差异有统计学意义。