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Biomedical subjects
Publications and source records attributed to E Fourmaux.
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A case of bilateral Anterior Ischemic Optic Neuropathy (AION) which is related to buried optic nerve head drusen is presented. Such an etiology has rarely been described and is poorly-documented in the literature. This etiologic diagnosis is brought by the imaging techniques: fluorescein angiography, B-scan ultrasonography and computed tomography. The pathogenesis may be related to the compressive effects encountered in a small scleral canal. The other complications of optic nerve head drusen are described and their similar mechanisms discussed.
Intraocular lymphoma is a rare disease. We present a patient in which anisocoria led to the diagnosis of iris lymphoma and systemic malignant non Hodgkin's lymphoma.
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Corneal topographic analysis has become quite useful for corneal surgery. Quantitative data on the quality and accuracy of the available instruments are not well known. We studied the accuracy and the reproducibility of the Eyesys machine using 4 calibrated balls: 8.99 mm, 7.93 mm, 7.10 mm, 6.13 mm. The machine is accurate (precision less than 0.1D for all the balls) and reproducible (4 measurements) with a SD less than 0.05 diopter for all the balls except for the 55.04's ball (0.06 to 0.1). We also studied reproducibility with six normal corneas using the same method. SD was 0.26 diopter for keratometry and 0.50 diopter for the astigmatism value.