【摘要】 目的研究多焦点人工晶状体眼的假性调节。方法分别对19例30眼(多焦点植入组)和20例30眼(单焦点植入组)进行单眼近附加以及最佳矫正近视力、假性调节幅度和焦点深度检查。结果多焦点组和单焦点组单眼近附加分别为(1.99±0.27)DS和(1.89±0.24)DS,差异无显著性(P>0.05)。近附加后两组单眼假性调节幅度分别为(1.20±0.36)DS和(1.23±0.29)DS,差异无显著性(P>0.05)。多焦点组能提供更广阔的焦点深度范围,为-3.50~+1.50 DS,单焦点组为-1.50~+1.00 DS,两者差异有显著性(P<0.05)。结论选择视远光学区进行附加时,多焦点组人工晶状体眼的假性调节幅度和单焦点组无明显差异。多焦点人工晶状体具有比单焦点人工晶状体更广阔的焦点深度范围。更多还原

【Abstract】 Objective To investigate the amplitude of pseudoaccommodation in eyes after multifocal intraocular lens implantation.Methods Thirty-nine cataract patients were divided into two groups.One group received multifocal intraocular lens implants and the other received monofocal intraocular lenses after phacoemulsification.Near add,best corrected near visual acuity,amplitude of pseudoaccommodation and depth of focus were measured at 3 months or later postoperatively.Results The difference in add between the two groups was not statistically significant [(1.99±0.27)DS versus(1.89±0.24)DS,P>0.05].The difference in amplitude of pseudoaccommodation between the groups when near corrected was not statistically significant either [(1.20±0.36)DS versus(1.23±0.29)DS,P>0.05].Depth of focus was better in the multifocal group than in the monofocal group(+1.5～-3.5 DS versus +1.0～-1.5 DS).Conclusion The difference in amplitude of pseudoaccommodation between the two groups when corrected with near and distance zones was not statistically significant.Compared to the monofocal intraocular lens,the multifocal lens can provide a wider range for depth of focus.更多还原