期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
Clinical outcomes of 25-gauge vitrectomy surgery for vitreoretinal diseases: comparison of vitrectomy alone and phaco-vitrectomy 被引量:10
1
作者 Mucella Arikan Yorgun Yasin Toklu +1 位作者 Melek Mutlu Umut Ozen 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2016年第8期1163-1169,共7页
AIMTo compare the clinical outcomes of combined 25-gauge pars plana vitrectomy (PPV) and phacoemulsification/posterior chamber intraocular lens (PC-IOL) implantation with vitrectomy alone surgery in patients with vari... AIMTo compare the clinical outcomes of combined 25-gauge pars plana vitrectomy (PPV) and phacoemulsification/posterior chamber intraocular lens (PC-IOL) implantation with vitrectomy alone surgery in patients with various vitreoretinal diseases.METHODSA total of 306 eyes (145 with PPV alone and 161 with phaco-vitrectomy) were enrolled in this retrospective analysis. The surgical approach was 25-gauge PPV combined with phacoemulsification and PC-IOL implantation at the same time in eyes in phaco-vitrectomy group and only PPV in eyes in vitrectomy alone surgery group. The main outcome measures were postoperative clinical outcomes included anterior chamber inflammation, changes in intraocular pressure (IOP) and best corrected visual acuity (BCVA).RESULTSThe most common postoperative complication was anterior chamber reaction which has higher incidence in phaco-vitrectomy group (P&#x0003c;0.001). The mean postoperative 1<sup>st</sup> day IOP of vitrectomy alone group was significantly lower than that of phaco-vitrectomy group (16.3&#x000b1;5.8 mm Hg vs 17.8&#x000b1;8.1 mm Hg, respectively, P=0.02). Hypotony (IOP&#x02264;8 mm Hg) was not different between groups in the postoperative 1<sup>st</sup> day (P&#x0003e;0.05). The mean preoperative visual acuity was not different between groups (1.6&#x000b1;0.9 logMAR vs 1.8&#x000b1;0.9 logMAR, respectively, P&#x0003e;0.05). However, the mean visual acuity was decreased in vitrectomy alone group at the final visit compared to phaco-vitrectomy group (1.2&#x000b1;0.8 logMAR, 0.9&#x000b1;0.7 logMAR, respectively P&#x0003c;0.05).CONCLUSIONTwenty-five gauge PPV combined with phacoemulsification surgery is a safe and efficient procedure, which can be preferred in phacic patients with a variety of vitreoretinal diseases compared to vitrectomy alone. Despite improved outcomes, this approach is not free of limitations as anterior chamber complications especially with combined surgery. 展开更多
关键词 pars plana vitrectomy PHACOEMULSIFICATION small gauge vitrectomy
下载PDF
Effects of Cylinder Radius,Setover and Heel-Toe Difference on Cylinder-Flat Gauge of a Card 被引量:2
2
作者 孙鹏子 鞠衍清 张明光 《Journal of Donghua University(English Edition)》 EI CAS 2007年第5期657-661,共5页
In order to provide manufacturers of carding machines and relevant accessories with theoretical references,how cylinder radius,setover and heel-toe difference affect cylinder-flat gauge of a carding machine was theore... In order to provide manufacturers of carding machines and relevant accessories with theoretical references,how cylinder radius,setover and heel-toe difference affect cylinder-flat gauge of a carding machine was theoretically studied.The relationship between cylinder-flat gauge and cylinder radius,setover and heel-toe difference was geometrically discussed.Numerical calculation and illustration about the relationship were made with MATLAB in accordance with practical settings.A general formula about the relationship is derived.A concept,the small-gauge zone length,has been defined for the first time,and some relevant results thus obtained.Given setover and heel-toe difference,the greater the cylinder radius,the greater the average gauge.If a smaller overall cylinder-flat gauge is desirable,it is not necessary to emphasize the tangential direction of the heel of clothed surface to the cylinder.Their intersection within a small zone is acceptable.In many cases,small-gauge zone can reduce average gauge which may be helpful to the carding action;given cylinder radius and setover,the smaller the heel-toe difference,the more helpful to reduce the overall gauge;given cylinder radius and heel-toe difference,the small-gauge zone length will increase with the increase of setover,so does the difference between the smallest gauge and outlet gauge. 展开更多
关键词 carding machine cylinder-flat gauge cylinder radius setover heel-toe difference the small gauge zone
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部