Navegando por Palavras-chave "Microscopy, confocal"

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    Avaliação da ceratoplastia lamelar anterior profunda em pacientes com ceratocone
    (Conselho Brasileiro de Oftalmologia, 2009-08-01) Macedo, Jarbas Pereira de [UNIFESP]; Forseto, Adriana dos Santos [UNIFESP]; Allemann, Norma [UNIFESP]; Sousa, Luciene Barbosa de; Universidade Federal de São Paulo (UNIFESP); Eye Clinic Day Hospital; Hospital Oftalmológico de Sorocaba
    PURPOSE: To evaluate the efficacy, complications and confocal microscopy corneal features of deep anterior lamellar keratoplasty using the air dissection technique in keratoconus. METHODS: Seventeen eyes with advanced keratoconus were submitted to this technique. Postoperative visual acuity and complication rate were analyzed. The thicknesses of full cornea tissue, host bed and donor button were measured, donor-host interface was also evaluated using confocal microscopy. RESULTS: Best-spectacle corrected visual acuity was 0.5 or better in 50% of the eyes. Complications occurred in five of seventeen patients (29.41%). Confocal microscopy demonstrated in four eyes the presence of hiperreflective structures at the interface, suggesting deposits and striae. Average corneal pachymetry, donor button and host bed thicknesses were respectively 609.00 ± 77.55 µm, 516.55 ± 43.65 µm and 92.50 ± 60.10 µm. CONCLUSIONS: Although technically challenging with the risk of intraoperative Descemet's membrane perforation, deep anterior lamellar keratoplasty with air dissection technique presents as an option for keratoconus treatment. Confocal microscopy demonstrated to be a useful method not only for the pachymetry measurement but also for the evaluation of interface by observing the absence of opacities in most of the cases.
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    Microscopia confocal in vivo no diagnóstico de ceratite fúngica: relato de caso
    (Conselho Brasileiro de Oftalmologia, 2006-06-01) Victor, Gustavo; Alves, Milton Ruiz; Nosé, Walton [UNIFESP]; Universidade de São Paulo (USP); Universidade Federal de São Paulo (UNIFESP); Universidade Metropolitana de Santos Departamento de Oftalmologia
    The authors describe a case of fungal keratitis that the in vivo confocal microscopy helped in the diagnosis and follow-up. Confocal microscopy was done in a patient's ulcer that did not improve with several topical medicines. Corneal scrapings were obtained and culture results were without conclusion. We observed hyphae and infectious collections on confocal microscopy. New corneal culture showed Fusarium sp ten days after confocal diagnosis.
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    Microscopia confocal in vivo nos depósitos corneanos por amiodarona
    (Conselho Brasileiro de Oftalmologia, 2007-02-01) Victor, Gustavo; Alves, Milton Ruiz; Nosé, Walton [UNIFESP]; Universidade de São Paulo (USP); Universidade Federal de São Paulo (UNIFESP); Universidade Metropolitana de Santos
    PURPOSE: To describe in vivo confocal microscopy findings in patients with different stages of amiodarone-induced keratopathy, and correlate biomicroscopy stages with confocal stages. METHODS: Twenty eyes of 10 patients (6 men and 4 women), who receive treatment with amiodarone were selected for the study with confocal microscopy (MC). RESULTS: The average age was 58 ± 6.2 years (50-66 years) and time of use of the drug was 6 ± 3.2 years (2-11 years). All patients have best correct visual acuity ³ 20/40. There were two patients in stage 1, 4 patients in stage 2 and 4 in stage 3 of induced keratopathy. All corneas presented brilliant intracellular inclusions with high reflectivity in the basal epithelium layer. Patients in stage 2 and 3 have all corneal layers affected. There are thinning and increase of tortuosity of corneal nerves in patients in stage 2 and 3. The endothelial count was 2,524 ± 150,3 cell/mm². CONCLUSION: The basal epithelium was most affected in any of the keratopathy stages. In stage 1 patients only the superficial and basal epithelium are affected, while patients in stages 2 and 3 have all corneal layers affected. With the advance of keratophaty the corneal nerves became thinner and tortuous.