白内障手术不同切口对视力和屈光力的影响  

The impact of different incisions on visual acuity and corneal refractivity in cataract surgery

作　　者：邓承[1,2] 刘荣华[1,2] 

机构地区：[1]华西医科大学附属第四医院眼科 [2]四川成仁眼科医院

出　　处：《中华眼科杂志》1997年第3期195-197,共3页Chinese Journal of Ophthalmology

摘　　要：目的了解白内障手术不同切口对术后视力和角膜屈光力的影响。方法对白内障囊外摘除和超声乳化５ｍｍ弧形切口、７ｍｍ眉状切口的２４３只眼，于术后三个不同时期进行视力和角膜曲率测定，并予比较。结果超声乳化５ｍｍ弧形切口组和７ｍｍ眉状切口组术后１／２、３和６个月的角膜屈光力差明显低于囊外摘除组（Ｐ＜０．０５），且视力显著高于后者（Ｐ＜０．０５）。超声乳化７ｍｍ眉状切口和５ｍｍ弧形切口组之间，前者术后１／２和３个月的角膜屈光力差明显低于后者（Ｐ＜０．０５）。结论超声乳化７ｍｍ眉状切口为一有效控制术后角膜散光的术式。Objictive To research the impact of different incisions of cataract surgery on post ope r ative visual acuity and corneal refractivity.Methods The visual acuity and corneal refractivity in 243 eyes having undergone extracapsular cataract extraction and phacoemulsification with 5mm tunnel inci sion or 7mm frown shaped incision were examined and compared at three post operative periods .Results The mean increase in corneal refractivity in phacoemulsification group was significant ly less(P<0.05) and the corrected visual acuity was much better(P<0.05) than that in conventional extracap sular cataract extraction (ECCE) group at post operative 1/2 month,3 months and 6 months (P<0.05). In the phacoemulsification group,the increase of the post oprative refractivity in 7mm frown shaped incision group was less than that in 5mm tunnel incision group at 1/2 month and 3 months (P<0.05).Conclusion 7 mm frown shaped incision of phacoemulsification is the most effective method to control the post operative corneal astigmatism in cataract surgery.

关 键 词：白内障摘除术 切口 视力 屈光力 

分 类 号：R779.66[医药卫生—眼科]