To determine clinical features and outcomes of retinal detachments[RDs] following trans-scleral fixation of posterior chamber intraocular lens[PC-IOL], we reviewed the medical records of 249 eyes[239 patients] which had undergone trans-scleral fixation of PC-IOL and had been followed 6 months or longer. Retinal detachment occurred in 8 out of 249 eyes[3.2%]. The incidences of RDs were as follows:in 2/19 eyes[10.5%] with PC-IOL exchange for PC-IOL tilt, in 1/16 eyes[6.3%] with posterior capsule rupture during ECCE, in 1/26 eyes[3.8%] with ICCE, in 2/78 eyes[2.6%] with posterior capsule rupture during phacoemusification, in 2/106 eyes[1.9%] with aphakia, and in 0/4 eyes[0%] with anterior IOL exchange with PC-IOL. The sites of retinal break corresponded with the directions of needle during fixation in 5/8 eyes[62.5%] and all retinal breaks were located anterior to the equator. The timing of RD was between 2 weeks and 4.8 years after fixation although it occured within 2 months in most cases. Pars plana vitrectomy and scleral buckling were performed in 7 eyes and scleral buckling only in one eye. Retinal reattachment was achieved in seven eyes including three eyes which required two surgical interventions. The vitrectomy should be performed with meticulous care to reduce vitreous traction as much as possible during trans-scleral fixation of PC-IOL and a close follow-up examination for RD is required during the first two months.
Aphakia ; Follow-Up Studies ; Incidence ; Lenses, Intraocular* ; Medical Records ; Needles ; Retinal Detachment* ; Retinal Perforations ; Retinaldehyde* ; Rupture ; Scleral Buckling ; Traction ; Vitrectomy

No abstract available.
Animals ; Brain* ; Diencephalon* ; In Situ Hybridization* ; Rats* ; RNA, Messenger* ; Somatostatin* ; Telencephalon*

No abstract available.
Fractures, Spontaneous*

No abstract available.
Hemangioma* ; Ligation*

No abstract available.
Animals ; Bacteria* ; Carcinoma, Lewis Lung* ; Lactic Acid* ; Mice* ; Sarcoma 180* ; Sarcoma*

PURPOSE: The purpose of this study was to assess the surgical results of internal limiting membrane peeling during pars plana vitrectomy for the treatment of idiopathic macular holes. METHODS: Ten patients(10 eyes) with idiopathic macular hole stage 3 or 4 underwent pars plana vitrectomy with peeling of the macular internal limiting membrane, and total fluid-gas exchange, and were positioned face-down for 2 weeks. RESULTS: Anatomic success was achieved in 10 eyes(100%), and visual improvement of 2 or more lines on Han Chun Suk visual acuity chart was achieved in 5 eyes(50%). Eyes with symptoms of less than 6 months showed better functional recovery than eyes with symptoms of more than 6 months. Transmission electron microscopic examination showed internal limiting membrane in the removed specimens. Complications attributed to the operation included nucleosclerosis, transient high intraocular pressure, and retinal pigment epithelial degeneration. CONCLUSIONS: Internal limiting membrane peeling may be a useful adjunct for the successful macular hole surgery.
Intraocular Pressure ; Membranes* ; Retinal Perforations* ; Retinaldehyde ; Visual Acuity ; Vitrectomy

The aims of the Tharies replacement are to preserve bone stock and provide a more physiological and anatomical replacement using eccentic shells with the hope that long term durability will be improved. 8 cases of THARIES replacement performed between 1981 and 1983 at Hanyang UniversityHospital were reviewed and analyzed by radiography and U.C.L.A. hip rating system. Follow-up ranged from 34 to 54 months and averaged 43.3 months. The result was relatively good in 6 cases except two cases of aseptic loosening without further progression.
Arthroplasty ; Follow-Up Studies ; Hip ; Hope ; Radiography

No abstract available.
Olfactory Bulb* ; Signal Transduction*

No abstract available.
Animals ; Neurons* ; Neurotransmitter Agents* ; Rats*

We reviewed the records of 23 patients who underwent repeat operation after initial vitreoretinal surgery in Chungnam National University Hospital between January 1993 and December 1993. Of 193 eyes who underwent vitreoretinal surgery in that period, 23(12%) had undergone reoperation. The most common cause of initial anatomic failure and reoperation was either new or recurrent proliferative vitreoretinopathy(10 eyes). Other causes included iatrogenic retinal tears(5 eyes), hidden retinal breaks(4 eyes), vitreous traction(1 eye), inappropriate chorioretinal adhesion(1 eye), and new break(1 eye). We performed vitreous base dissection on all 9 eyes with anterior proliferative vitreoretinopathy. With additional surgery and after a mean follow-up period of 10.4 months, 21(91%) of 23 retinas were reattached. The final cause of anatomic failure was anterior proliferative vitreoretinopathy. Of the 23 reoperated eyes, 20(87%) had postoperative visual acuity of 0.05 or better.
Chungcheongnam-do ; Follow-Up Studies ; Humans ; Reoperation ; Retina ; Retinaldehyde ; Visual Acuity ; Vitreoretinal Surgery* ; Vitreoretinopathy, Proliferative