Automated alternation flicker for the detection of optic disc haemorrhages
نویسندگان
چکیده
منابع مشابه
Automated Optic Nerve Disc Parameterization
New information technologies provide a possibility of collecting a large amount of fundus images into databases. It allows us to use automated processing and classification of images for clinical decisions. Automated localization and parameterization of the optic nerve disc is particularly important in making a diagnosis of glaucoma, because the main symptoms in these cases are relations betwee...
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Buried drusen of the optic discs are the main cause of difficulty in the diagnosis of early papilloedema. In a series of 28 cases of pseudopapilloedema, which had been mistakenly diagnosed as papilloedema due to brain tumour, Hoyt found buried drusen to be the major cause of confusion (Hoyt and Pont, I962). Many of his patients had undergone unnecessary and often hazardous investigations, inclu...
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The paper presents a simple, parameter-free method to detect the optic disc in retinal images. It works efficiently for blurred and noisy images with a varying ratio OD/image size. The method works equally well on images with different characteristics which often cause standard methods to fail or require a new round of training. The proposed method has been tested on 214 infant and adult retina...
متن کاملOptic Disc and Optic Cup Segmentation for Glaucoma Detection
Glaucoma is an eye disease that leads to vision loss. The symptoms of the glaucoma occurs when disease is quite advance. Glaucoma is called ‘silent thief of sight’ so, that early detection of glaucoma is very essential. In existing approach three methods are used to detect glaucoma namely Assessment of raised intraocular pressure (IOP).Assessment of abnormal visual field. Assessment of damaged ...
متن کاملThe association between retinal vein pulsation pressure and optic disc haemorrhages in glaucoma
PURPOSE To explore the potential relationship between optic disc haemorrhage, venous pulsation pressure (VPP), ocular perfusion pressures and visual field change in glaucomatous and glaucoma suspect eyes. MATERIALS AND METHODS This prospective observational study examined 155 open angle glaucoma or glaucoma suspect eyes from 78 patients over 5 years. Patients were followed with 3 monthly non-...
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ژورنال
عنوان ژورنال: Acta Ophthalmologica
سال: 2011
ISSN: 1755-375X
DOI: 10.1111/j.1755-3768.2010.02094.x