目的:通过对比人工晶状体眼传统验光和医学验光的异同,探讨人工晶状体眼科学规范的老视验光方法。方法:双眼年龄相关性白内障超声乳化摘除及折叠型单焦点人工晶状体囊袋内植入的患者共30例60眼,术后3mo先后进行传统验光和医学验光,分别检测老视阅读近附加、调节幅度及在近矫正基础上测量的负相对调节(NRA)和正相对调节(PRA)、舒适阅读时间长度。结果:传统验光法所取得的近附加为1.50±0.42D,与年龄正相关(P<0.05),医学验光法所取得的近附加为1.28±0.19D,与年龄无相关性(P>0.05),且两者比较差异有统计学意义(P<0.05);医学验光法舒适阅读时间为30.13±5.10min,明显较传统验光法舒适阅读时间17.0±3.06min长(P<0.05)。结论:在进行人工晶状体眼老视验光时,医学验光可取得更有意义的屈光及调节参数,从而对验光处方进行更精确和个性化的调整,达到更舒适、持久用眼的老视验配目的。

AIM:To compare the difference between conventional refractive procedure and medical refractive procedure in pseudophakic eye, exploring the scientific and standardized procedure of presbyopic refraction for pseudophakic eye. METHODS:Totally 30 age-related cataract patients(60 eyes) were with binocular phacoemulsification and monofocal intraocular lens inter-capsular implantation. All the patients were measured with conventional refractive procedure firstly and then medical refractive procedure after about a week. Presbyopic ADD, accommodative amplitude, negative relative accommodation(NRA) and positive relative accommodation(PRA) with best corrected near visual acuity(BCNVA) and length of comfortable reading time were measured 3 months after surgery. RESULTS:ADD acquired from two refractive procedure was significantly different(P<0.05), ADD acquired from conventional refractive procedure was 1.50±0.42D, which existed positive correlation with age(P<0.05);ADD acquired from medical refractive procedure was 1.28±0.19D, which had no correlation with age(P>0.05). Length of comfortable reading time acquired from medical refractive procedure were 30.13±5.10minutes, which was significantly longer than the length of comfortable reading time acquired from conventional refractive procedure (P<0.05). CONCLUSION:The exact presbyopic refraction for pseudophakic eye should be based on the parameter acquired from medical refractive procedure, in order to achieve longer time and more comfort on reading.

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中国广西壮族自治区卫生厅自筹经费课题资助项目(No.z2006050)~~