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

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

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

No abstract available.
Retinal Perforations* ; Ulnar Neuropathies*

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

PURPOSE: To evaluate macular function before and after surgical closure of idiopathic macular hole using multifocal electroretinogram (mfERG). METHODS: The mfERGs were performed on nine patients, who had been diagnosed with idiopathic macular hole, before and after vitrectomy (average 2.9+/-0.6 mo) and gas (C3F8) injection. VERISTMsystem (EDI: San Mateo, CA, USA) was used to record the mfERGs. The central 30 degrees of the ocular fundus were stimulated by an array of 103 hexagonal elements for 4 minutes. The responses of six concentric rings (rings 1 to 6) radiating from the foveal center were averaged. Preoperative and postoperative responses of mfERG were compared. Statistical differences were analyzed with the paired two sample t-test. RESULTS: N1, P1 and N2 amplitudes of rings 1 and 2 increased after surgery significantly (p<0.05). N1, P1 and N2 latencies mostly decreased after surgery, but these results were not significant (p>0.05). The changes of mfERG responses were not correlated with the changes of visual acuities after surgery. Visual acuity was improved in seven patients but deteriorated in the other two, one of whom developed RPE degeneration and another cataract. CONCLUSIONS: The mfERG responses improved after macular hole surgery. These results suggest that mfERG may be a useful method to assess macular function changes after macular hole surgery, although the responses were not correlated with visual acuity.
Cataract ; Humans ; Retinal Perforations* ; Visual Acuity ; Vitrectomy

For the evaluation of preoperative and postoperative factors effecting the results of vitrectomy as a treatment of full thickness macular hole, we estimated the three dimensional morphology of macular hole using the HRT [Heidelberg retina tomography]and investigated every patient's history and operation method. Pars plana vitrectomy, epiretinal and internal limiting membrane removal, and C3F8 injection were performed in 19 patients[19 eyes]with full thickness macular holes. Anatomic success was seen in 12 eyes[63.2%]and was statistically related with preoperative hole area, volume and depth. Functional success was seen in 6 eyes[31.6%]and was significantly related with preoperative hole volume and depth, marginal detachment area and volume, hole diameter and hole area. In addition, anatomic success was statistically related with internal limiting membrane removal[p<0.01], stage and preoperative visual acuity [p<0.05]. Functional success was significantly related with preoperative visual acuity, internal limiting membrane removal[p<0.01], stage and duration of the disease[p<0.05]. We conclude that preoperative HRT is a useful method in deciding the operative indications and also in predicting the outcomes.
Membranes ; Retina* ; Retinal Perforations* ; Visual Acuity ; Vitrectomy

PURPOSE: To evaluate the prognostic factors that predict visual outcome in eyes with successfully repaired idiopathic macular hole (MH) using optical coherence tomography (OCT). METHODS: We studied 48 eyes with stage 3 or 4 idiopathic MH that had undergone vitrectomy. All cases had anatomic closures and were followed-up for 6 months or more. We analyzed the preoperative macular hole in terms of minimum diameter, stage, hole form factor (HFF), and macular hole index (MHI), as well as the postoperative OCT images of the repaired macular hole and their relevance to visual recovery. RESULTS: We found significant differences in the preoperative minimum diameter of MH, HFF, the postoperative OCT images of the repaired macular hole, and postoperative visual acuvity. In contrast, we found no statistically significant differences in the preoperative base MH diameter, stage, HFF, MHI, and their relevance to visual recovery. CONCLUSIONS: Minimum diameter of MH, HFF, and the postoperative OCT images of the repaired MH are significant prognostic factors after vitrectomy for the treatment of idiopathic MH.
Retinal Perforations* ; Tomography, Optical Coherence ; Vitrectomy*