Navegando por Palavras-chave "optical coherence"

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    Evolution of optic nerve and retina alterations in a child with indirect traumatic neuropathy as assessed by optical coherence tomography
    (Consel Brasil Oftalmologia, 2017) Rossetto, Julia Dutra [UNIFESP]; Novais, Eduardo [UNIFESP]; Capo, Hilda
    Herein, we describe the case of a 4-year-old child with indirect traumatic optic neuropathy and serial changes of the optic nerve head and retinal nerve fiber layer (RNFL) documented using optical coherence tomography (OCT). Visual acuity improved despite progressive RNFL thinning and optic disc pallor. We concluded that OCT may be useful for monitoring axonal loss but may not predict the final visual outcome.
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    Optical coherence tomography and indocyanine green angiography findings in acute syphilitic posterior placoid choroidopathy: case report
    (Conselho Brasileiro de Oftalmologia, 2009-12-01) Meira-Freitas, Daniel [UNIFESP]; Farah, Michel Eid [UNIFESP]; Hofling-Lima, Ana Luisa [UNIFESP]; Aggio, Fabio Bom [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    The optical coherence tomography (OCT) and indocyanine green angiography (ICGA) findings of a 58-year-old male with acute syphilitic posterior placoid chorioretinitis are reported herein. Best-corrected visual acuity was 20/150 in the right eye (OD) and 20/30 in the left eye (OS) at presentation. On funduscopy, there was a central subretinal placoid yellowish lesion in OD. VDRL and serum FTA-ABS were positive. OCT showed increased reflectance and thickening of the subfoveal RPE-choriocapillaris complex corresponding to the lesion in OD. ICGA revealed a hypofluorescent spot corresponding to the lesion in OD and confluent small dots extending to periphery, without any correspondence in fundus examination. The same dots were also seen in OS, even though no lesions could be observed clinically. Intravenous ceftriaxone 2 g daily was given for 10 days. One month after the first visit, visual acuity improved to 20/30 and marked improvement of the lesion was seen. OCT was normal in both eyes at the final visit.
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    Optical coherence tomography angiography artifactual choroidal neovascularization in optic disc pit maculopathy
    (Consel Brasil Oftalmologia, 2017) Roizenblatt, Marina [UNIFESP]; Muller, Leo [UNIFESP]; Lobos, Claudio Z. [UNIFESP]; Saraiva, Vinicius S. [UNIFESP]; Magalhaes, Octaviano, Jr. [UNIFESP]; Maia, Andre [UNIFESP]
    This case report describes a 19-year-old Caucasian man presented with decreased visual acuity in the right eye for 3 months. Dilated funds exam revealed optic disk pit associated with serous macular detachment. Optical coherence tomography identified communication between the optic disk pit and the macular serous detachment, and optical coherence tomography angiography displayed a subfoveal area suggestive of subfoveal choroidal neovascularization. However, there was no evidence of leakage in the fluorescein angiogram and no evidence of choroidal neovascularization in optical coherence tomography in the area corresponding to the suspicious subfoveal choroidal neovascularization. The patient underwent 23-gauge pars plana vitrectomy in the right eye. Six weeks after surgery, multimodal imaging was repeated and there was near-complete resorption of the subretinal fluid. Optical coherence tomography angiography signal superimposed on optical coherence tomography B-scan also demonstrated normal choriocapillaris signal throughout the macula. In conclusion, optical coherence tomography angiography may produce artifacts in optic disk pit maculopathy that simulate choroidal neovascularization.
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    Stratus optical coherence tomography findings in patients with retinopathy of prematurity
    (Conselho Brasileiro de Oftalmologia, 2007-02-01) Lago, Aline do [UNIFESP]; Matieli, Lícia [UNIFESP]; Gomes, Michele [UNIFESP]; Baba, Natalia Tamie [UNIFESP]; Farah, Michel Eid [UNIFESP]; Belfort, Rubens Junior [UNIFESP]; Moraes, Nilva Simeren Bueno de [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    PURPOSE: To describe morphological features of the macula in patients with retinopathy of prematurity. METHODS: Twelve premature babies with retinopathy of prematurity grades I, II and III underwent dilated fundus examination and optical coherence tomography evaluation. RESULTS: In all thirteen eyes of the twelve premature patients optical coherence tomography revealed a condensed retinal pigmented epithelial layer in the macular-foveal area shown by increased reflectivity. In these eyes the retinal layers were not well differentiated. Foveal depression was clearly evident in 23%. CONCLUSIONS: In premature patients with retinopathy of prematurity, optical coherence tomography revealed poorly differentiated layers in the macular region with increased reflectivity in retinal pigmented epithelial-choriocapillaris zone.