No Abstract Available.
Retinal Detachment* ; Retinal Perforations* ; Retinaldehyde*

No abstract available.
Retinal Detachment* ; Retinal Perforations* ; Retinaldehyde*

No abstract available.
Retinal Perforations* ; Ulnar Neuropathies*

In 10 patients who complained of photopsia or "spots before their eyes", indirect ophthalmoscopy with scleral depressor was performed very carefully. In 7 out of 10 of these patients, we found retinal holes which were not easily detectable. Also, on 3 of these 7 patients, prophylactic cryopexy was performed. Therefore, we feel that indirect ophthalmoscopy should be done not only on patients who present these symptoms, but this examination should also be performed on asymptomatic patients as well.
Humans ; Ophthalmoscopy ; Retinal Perforations

Idiopathic macular holes are believed to arise from traction of the posterior vitreous membrane. Traditionally, macular holes have been considered as untreatable condition, but recently vitreous surgeries are being attempted to manage them. Pars plana vitrectomy in conjunction with separation of the posteror vitreous membrane and intraocular achieve visual improvement and anatomic reattachment in eyes with full thickness macular hole. A total of 9 eyes which included 2 eyes with stage 2 macular hole and 7 eyes with stage 4 macular hole underwent vitrectomy. The macular holes were successfully occluded in all 9 eyes and visual improvement of two lines or more was achieved in 6(67%) in which symptom duration was 3 months or less and/or hole size was 1/3DD or smaller. These results suggested that the full thickness macular holes would be surgically treatable lesions and better visual results can be expected in cases with shorter duration and smaller size.
Membranes ; Retinal Perforations* ; Traction ; Vitrectomy

No abstract available.
Glaucoma, Angle-Closure ; Retinal Perforations

Human ; Female ; Middle Aged ; RETINAL NEOVASCULARIZATION ; RETINAL NEOVASCULARIZATION/SURGERY ; RETINAL PERFORATIONS ; RETINAL PERFORATIONS/SURGERY ; HUMAN ; FEMALE

Effect of silicone oil in vitreous cavity of the rabbit was studied with electroretinogram. Pars plana vitrectomy was performed bilaterally in nine white rabbits, and they were divided into 3 groups. 1.6~1.7 cc of silicone oil was injected in right eye in 1st group, 0.8 cc of silicone oil was injected in right eye in 2 nd group, and 0.8~1.0 cc of silicone oil was injected in right eye after retinal tear was made in 3 rd group. Left eye in each group was used as a control. Photopic and scotopic electroretinographic studies were performed in both eye of rabbits preoperatively and postoperatively 2 days, 1 week, 2 weeks, 3 weeks, and 4 weeks. In each group, a and b-wave amplitude was decreased in silicone oil injected eye compared to control eye at postoperative 2 days, and was increased to normal amplitude at postoperative 4 weeks in both photopic and scotopic electroretinograms. Implicit time of a and b-wave was not affected in each group. Above results suggest that rabbit electroretinogram is not affected by intravitreal silicone oil until postoperative 4 weeks.
Rabbits ; Retinal Perforations ; Silicone Oils* ; Vitrectomy

We evaluated the relationship between the surgical success of idiopathic macular hole and sex, age, duration, epiretinal membrane, preoperative visual acuity, size of the hole, and surgical method. Of all 25 eyes in 23 patients, 14 eyes(56%)showed anatomical success(disappearance of the hole), and 17 eyes(68%)functional success(the final visual acuity of 0.15 or more with more than one line improvement). There were statistically significant differences of anatomical(p=0.001)and functional success(p=0.020)between the Group I where its macular hole was less than one-fourth of the optic disc in size and the other group, and anatomical success(p=0.039)between the group with the age of less than 70 years(Group A)and the other group. In Group I, anatomical and functional success were both 92%(11 eyes/12 eyes). In Group A, anatomical and functional success were 72%(13 eyes/18 eyes)and 77%(14 eyes/18 eyes), respectively, and there was statistically significant relationship between size of the hole and anatomical success(p=0.024), and difference of anatomical success between the group with duration of less than 6 months and the other group(p=0.023). Good surgical result may be expected in the idiopathic macular hole of the age of less than 70 years with about 350 micrometer or less in size and duration of less than 6 months.
Epiretinal Membrane ; Humans ; Retinal Perforations* ; Visual Acuity

PURPOSE: To evaluate if the presence of pathologic myopia could affect the result of macular hole surgery. METHODS: This study was a retrospective comparison of the results of macular hole surgery between a pathologic myopia group (11 eyes) and a non-pathologic myopia group (14 eyes). All patients had undergone PPV, ILM peeling and C3F8 (20%) gas temponade. BCVA, IOP and OCT findings were evaluated preoperatively and at 6 months after surgery. Postoperative BCVA, IOP and macular hole closure were compared between each groups. RESULTS: The only statistically significant preoperative parameter between the groups was axial length (p < 0.001). Postoperative BCVA was lower in the pathologic myopia group, but the difference was not statistically significant. The rate of macular hole closure was statistically significant higher in the non-pathologic myopia group (p < 0.001). CONCLUSIONS: The presence of pathologic myopia may negatively affect the result of macular hole surgery.
Humans ; Myopia ; Retinal Perforations ; Retrospective Studies