ABSTRACT
Purpose: To compare the outcomes of papillomacular bundle (PMB) sparing internal limiting membrane (ILM) peeling (group LP) and conventional ILM peeling (group CP) for treatment of idiopathic macular hole (MH) of ?400 ?m. Methods: Fifteen eyes were included in each group. In group CP, conventional 360° peeling was done, while in group LP, ILM was spared over PMB. The changes in peripapillary retinal nerve fiber layer (pRNFL) thickness and ganglion cell?inner plexiform layer (GC?IPL) thickness were analyzed at 3 months. Results: MH was closed in all with comparable visual improvement. Postoperatively, retinal nerve fiber layer (RNFL) was significantly thinner in the temporal quadrant in group CP. GC?IPL was significantly thinner in the temporal quadrants in group LP, whereas it was comparable in group CP. Conclusion: PMB sparing ILM peeling is comparable to conventional ILM peeling in terms of closure rate and visual gain, with the advantage of less retinal damage at 3 months.
ABSTRACT
Three patients with progressive visual loss, chronic alcoholism and tabagism were submitted to a complete neuro-ophthalmic examination and to retinal nerve fiber layer (RNFL) measurements using optical coherence tomography (OCT) scanning. Two patients showed marked RNFL loss in the temporal sector of the optic disc. However, a third patient presented RNFL measurements within or above normal limits, based on the Stratus-OCT normative database. Such findings may be due to possible RNFL edema similar to the one that may occur in the acute phase of toxic optic neuropathies. Stratus-OCT was able to detect RNFL loss in the papillomacular bundle of patients with tobacco-alcohol-induced toxic optic neuropathy. However, interpretation must be careful when OCT does not show abnormality in order to prevent diagnostic confusion, since overestimation of RNFL thickness measurements is possible in such cases.
Subject(s)
Adult , Alcohol-Related Disorders/pathology , Humans , Male , Middle Aged , Nerve Fibers/pathology , Optic Nerve Diseases/etiology , Optic Nerve Diseases/pathology , Retinal Ganglion Cells/pathology , Smoking/adverse effects , Tomography, Optical CoherenceABSTRACT
PURPOSE: To determine the loss of ganglion cell layer (GCL) neurons in patients with age-related macular degeneration (AMD) with choroidal neovascularization (CNV). METHODS: Retinal nerve fiber layer (RNFL) photography was taken in patients with AMD with CNV to assess the presence of RNFL defects in the papillomacular bundle area. Patients with other ocular disorders or a history of previous intraocular surgery or laser treatment were excluded from this study. RESULTS: Eighty-five eyes in 65 patients were included, of which only one (1.2%) showed papillomacular bundle defects in association with CNV. CONCLUSIONS: From this study, the majority of the patients with AMD with CNV had no papillomacular bundle defect, which demonstrates that considerable amount of GCL is maintained in AMD.