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find Author "惠延年" 86 results
  • Appreciable hotspots and problems of research for ocular fundus diseases: treatment and visual recovery after surgery of primary retinal detachment

    Retinal break is the cause of primary retinal detachment, which remains a main cause for visual loss, and closure of the breaks is the principle of treatment. Currently surgical treatment can successfully reattach the retina in most cases. However, some basic questions still beset treatment of the disease, such as the cause responsible for development of retinal breaks and how to prevent it, and how the visual recovery can be satisfactory after reattachment surgery. Recent research indicates that the development of retinal breaks is associated with the process of vitreous liquefaction, posterior vitreous detachment (PVD) and abnormal vitreoretinal adhesion and traction. The retinal breaks can occur in the posterior margin of the vitreous base in the eye with complete PVD. Partial PVD may cause posterior breaks especially in cases of myopic traction maculopathy associated with schisislike thickening in the outer retina (foveoschisis) and vitreomacular traction. It is known that microstructural changes and atrophy of the macula, and epiretinal membrane formation are the reasons for poor vision after the retina is reattached. Therefore, more attention should be paid to further understand the vitreous pathology and traction mechanism, to research for methods of its clinical evaluation and strategy of prevention and treatment, and to accelerate visual recovery after reattachment surgery, in order to raise the standard of the disease treatment.

    Release date:2016-09-02 05:21 Export PDF Favorites Scan
  • Experimental tests of ophthalmic drugs and related issues

    Release date:2016-09-02 05:46 Export PDF Favorites Scan
  • Vitrectomy for complications of diabetic retinopathy and control of surgical complications

    Complications of proliferative diabetic retinopathy have become the major indications of vitrectomy. The surgery, however, is not basically a causative therapy. The visual function after operation depends on the degree of retinal ischemia and damage induced. The surgery itself has a potential for severe complications. Therefore it is important to better understand the pathology and to master surgical strategy and techniques in order to improve surgical outcomes and reduce the surgical complications. (Chin J Ocul Fundus Dis,2007,231-233)

    Release date:2016-09-02 05:48 Export PDF Favorites Scan
  • 国内眼底病基础研究的状况及值得注意的问题

    Release date:2016-09-02 05:51 Export PDF Favorites Scan
  • 放射状视神经切开术治疗视网膜中央 静脉阻塞及争议

    Release date:2016-09-02 05:52 Export PDF Favorites Scan
  • 玻璃体视网膜病临床发展趋势 ——第22届Club Jules Gonin会议纪要

    Release date:2016-09-02 06:03 Export PDF Favorites Scan
  • 爱丁堡第21届Gonin学会会议纪要

    Release date:2016-09-02 06:07 Export PDF Favorites Scan
  • 增生性玻璃体视网膜病变:带入21世纪的课题

    Release date:2016-09-02 06:07 Export PDF Favorites Scan
  • VITRECTOMY FOR SEVERE EYEBALL INJURIES CAUSED BY EXPLOSION.

    PURPOSE: Determining the efficacy of vitrectomy in explosive injuries of eye globes and assessing the curcept concept of enucleation for severe traumatized eyes. METIIODS: Clinical records were reviewed on 36 consecutive patients(44 eyes)with severe explosive eyeball injuries. RESULTS:The injuries were caused by explosion of detonator (10 eases), fire-crackers(7 cases) ,explosive and guns(19 cases). Ten eyes(22.7%)were ruptured. Fourty eyes(90. 9%)underwent vitrectomy for posterior segment injuries including vitreous hemorrhage,intraocular foreign bodies, endophthalmitis, and retinal detachment more than 2 weeks after trauma and primary wound repair. Postoperative visual acuity improved in 25 eye(62.5%) ,was stable in 11 eyes(27.5%) ,and decreased in 4 eyes(10%). Final vision was 0. 02 or better (up to 0.7)in 20 eyes(47.6%). No more enucleation was performed except two ruptured eyes (4.5% ) removed in primary clinical units. CONCLUSION :The results suggest that primary wound repair with microsurgery and secondary vitrectomy may reconstruct the eyeball and restore visual functions.at least partially.in the majority of eyes,even though the explosive ocular injuries often induce severe damages and eyeball rupture. It is.thus,recommended that primary enueleation of traumatized eyes should not be performed with an occasional exception. (Chin J Ocul Fundus Dis,1996,12: 169-171)

    Release date:2016-09-02 06:21 Export PDF Favorites Scan
  • 单眼飞蚊症应警惕视网膜裂孔形成

    Release date:2016-09-02 06:35 Export PDF Favorites Scan
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