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目的:评价配戴增加景深的接触镜对老视眼近视力和调节功能的影响。方法:双盲自身对照试验。于2018年6至8月从海南省眼科医院职工或就诊患者家属中招募45~55岁的正视眼志愿者30名（男性15名，女性15名），年龄（49.6±4.5）岁，非主视眼配戴增加景深的软性角膜接触镜。检查戴镜及裸眼时的5 m远视力、40 cm近视力和60 cm近视力，并在40 cm距离检查单眼调节幅度，±1.00 D时的调节灵敏度，调节滞后或调节超前量，双眼正、负相对调节及调节性集合与调节比值（AC/A）。采用配对n t检验和配对资料的Wilcoxon符号秩和检验对戴镜及裸眼时的视力和调节数据进行统计学分析。n 结果:裸眼及配戴角膜接触镜时，受试眼40 cm近视力分别为4.59±0.14和4.69±0.10，差异有统计学意义（n t=4.16，n P0.05）；5 m远视力分别为5.00±0.06和4.96±0.06，差异有统计学意义（n t=3.89，n P0.05）。n 结论:配戴增加景深的接触镜可以提高老视眼的近视力和调节幅度、调节灵敏度等调节功能。（n 中华眼科杂志，2021，57：292-296）“,”Objective:To evaluate the effect of extended depth of focus contact lenses on the accommodation of presbyopic eyes.Methods:It was a double-blind randomized controlled trial. Thirty eyes of 30 emmetropic volunteers (15 males, 15 females) who were staff or family members of Hainan Eye Hospital, aged (49.6±4.5) years, were selected. Non-dominant eyes were fitted with soft contact lenses with an extended depth of field. The subjects and examiners were double-blind. Visual acuities of the subjects were examined at 5 m, 40 cm and 60 cm distance before and after the contact lens wear. Meanwhile, the monocular accommodative amplitude, monocular accommodative facility (±1.00 D), accommodative response, binocular positive/negative relative accommodation and accommodation convergence/accommodation at 40 cm distance were measured. The data were analyzed by paired t test and Wilcoxon signed rank test before and after the contact lens wear, and a P value less than 0.05 was considered statistically significant.Results:Before and after the contact lens wear, the visual acuity at 40 cm was 4.59±0.14 and 4.69±0.10, and the difference was statistically significant (n t=4.16, n P0.05). The distance visual acuity was 5.00±0.06 and 4.96±0.06, and the difference was statistically significant (n t=3.89, n P0.05).n Conclusion:Wearing contact lenses with an extended depth of field can improve the near vision and accommodation of presbyopes (n Chin J Ophthalmol, 2021, 57:292-296)