人工晶状体眼近视力矫正对近立体视的影响

目的 探讨超声乳化白内障吸除及人工晶状体植入术后近立体视改善的方法和手段,为临床改善人工晶状体眼者生活质量提供依据.方法 前瞻性系列病例研究.随机收录年龄相关性白内障患者46例(92只眼),平均年龄(61.3±5.5)岁.其中单眼人工晶状体眼24例(A组),双眼人工晶状体眼22例(B组).测量调节幅度、相对调节、近附加、近立体视.对被收录者人工晶状体眼的一般资料及近附加等计量资料进行t检验,对受检者近立体视分布数据采用X2检验,以P<0.05有统计学意义.结果 A、B组人工晶状体眼移近法单眼调节幅度分别为(2.05±1.12)和(2.35±1.30)D;双眼近附加分别为(2.08±0.37)和(2.13±0.46)D,单眼近附加分别为(2.20±0.42)和(2.01±0.39)D,各组内双眼近附加与单眼近附加差异均有统计学意义(t=2.33,2.20;P<0.05),左右眼单眼近附加差异均有统计学意义(t=3.70,5.02;P<0.01).A、B组配戴单眼近附加时的近立体视优于双眼近附加,差异均有统计学意义(X2=6.46,7.02;P<0.05).结论 单眼近附加作为人工晶状体眼的近附加可以有效改善近屯体视.(中华眼科杂志,2008,44:711-714)

Enhanced near stereopsis after phacoemulsification and implantation of posterior chamber intraocular lens by prescribing addition properly

Objective To improve near stereopsis in pseudophakic eyes after phacocmulsification and implantation of posterior chamber intraocular lens (IOL). Methods This prospective case-series study comprised 92 eyes of 46 patients aged 50 to 70 years [mean age (61.33±5.54 ) years ] who hod phacocmulsification and implantation of posterior chamber IOL, including 24 unilateral pseudophakias (Group A ) and 22 bilateral pseudophakias (Group B ). The accommodative amplitude, relative accommodation, reading addition, near stereoacuity, etc. Were measured. All data were analyzed with the SPSS11.0 for Windows. Results (1) The mean value of monocular accommodative amplitude in the group A and group B was (2.05±1.12) and (2.35±1.30) D, respectively. (2) In the group A and group B,the binocular odd was (2.08±0.37) and (2.13±0.46) D, respectively, and the monocular odd was (2.20±0.42) and (2.01±0.39) D, respectively. There was a significant difference between the binocular add and the monocular add (t=2.33, 2.20 ,P<0.05), and between left monocular add and fight one (t=3.70, 5.02,P<0.01) in each group. (3) The near stereopsis with monocular odd was better than that with binocular add in each group, the difference was significant (X2=6.46, 7.02, P=0.04, 0.03). Conclusion Monocular add is beneficial to a pseudophakia with posterior chamber IOL implantation to improve near stereopsis. (Chin J Ophtbalmol, 2008,44:711-714)