1,721,031 research outputs found
III corso di aggiornamento teorico pratico sull'OCT Degenarazione maculare legata all'età
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Crouzon disease in twins. Clinical and pathological contribution.
No full textAfter a survey of cases in the literature reported, two cases of Crouzon disease, in monovular twins are described. The observation in twins and the opportunity of histologic examination of optic nerve, permitted some considerations in order to help in understanding this syndrome
Visualization of vitreomacular tractions with en face optical coherence tomography.
No full textBackground In vitreomacular traction syndrome, an incomplete vitreous detachment with persistent vitreous traction on the macula is present. This condition may determine formation of epiretinal membranes, macular puckering, macular oedema, and traction macular detachment. Recently introduced en face optical coherence tomography (OCT) provides not only longitudinal B-scan but also coronal C-scan images of the retina.
Methods Fifteen eyes of 11 non-diabetic patients presenting vitreomacular traction syndrome have been evaluated with en face OCT (OTI, Toronto, Ontario, Canada).
Results In 12 eyes, cystoid macular oedema was detectable at fundus examination and was associated with a broad-based adherence of the posterior hyaloid to the macula. In three eyes, foveal detachment appeared to be associated with focal foveal vitreoretinal traction. In all eyes, the lateral extent of the hyaloidal tractions on the macula was clearly detectable at coronal C-scan. They appeared as sigmoid hyper-reflective bands in the hyporeflective vitreous chamber. Overlay of C-scans on red-free confocal images allowed the visualization of the edges of the adherences in relation to the structures of the posterior pole.
Conclusions The C-scan images allowed clear visualization of the total extension of the posterior vitreomacular adherences and their relationships with the vascular arcades, the optic disc, and the fovea
Evaluation of intrachoroidal cavitation peripapillary detachment in pathologic myopia with en face optical coherence tomography
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