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A Journal on Ophthalmology
Minerva Oftalmologica 2007 September;49(3):77-96
Echography a and B-scan in ophthalmology
Avitabile T., Bonfiglio V.
Divisione Clinicizzata di Oftalmologia Ospedale Universitario Vittorio Emanuele Università degli Studi di Catania, Catania
Echography is a non invasive repeatable diagnostic tool insostituible in case with opaque media but also useful for some differential diagnosis in eyes with transparent media. In this review the authors, describe the fiscal principles and the way how to perform the main echographical techniques: A-Scan (monodimensional echography) information about histology of the lesion and B-Scan (bidimensional echography) information about shape and topography. It is also discussed the role of standardized echography based on the used of special equipments (8 MHz non focused probe, amplification with “S” curve) which allows to obtain the same patterns in the hands of different operators around the word. They describe the key points with this technique to perform the differential diagnosis of many ocular diseases. According to literature and personal experience the authors report the main echographical characteristic with the aid of many personal pictures, of many oculo-orbital deceases (vitreo-retinal pathologies, traumatology and foreign bodies, intraocular and orbital tumours, graves orbitopathy etc.). The direct access of the ophthalmologist to the ecograph enables the correlation with anamnestic and clinical data; with this review we want to give to general ophthalmologist the opportunity to perform echography by themselves in most diffuse ocular diseases.