Automated Early Detection of Glaucoma in Wavelet Domain Using Optical Coherence Tomography Images
نویسندگان
چکیده
منابع مشابه
Automated Early Detection of Glaucoma in Wavelet Domain Using Optical Coherence Tomography Images
Glaucoma is a chronic eye disease now-a-days that leads to visual impairment and blindness worldwide. Neurodegeneration of the optic nerve in association with changes in the parapapillary region induces glaucoma. Hence, the premature detection of optic nerve damage may permit early detection of glaucoma. In this paper, an image classification system is developed for early stage glaucoma diagnos...
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OBJECTIVE To assess the role and diagnostic effectiveness of optical coherence tomography (OCT) and short wave-automated perimetry (SWAP) to distinguish between normal, glaucoma suspects, and surely diagnosed glaucomatous eye. BACKGROUND Changes in the optic disc and retinal nerve fiber layer (RNFL) often precede the appearance of visual field defect with standard automated perimetry. Unfortu...
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BACKGROUND AND OBJECTIVE Measurements performed on fundus images using current software are not accurate. Accurate measurements can be obtained only by calibrating a fundus camera using measurements between fixed retinal landmarks, such as the dimensions of the optic nerve, or by relying on a calibrated model eye provided by a reading center. However, calibrated spectral domain OCT (SD-OCT) cou...
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The optic disk and the RNFL are the principal sites of apparent glaucomatous damage which precedes glaucomatous visual field alterations. RNFL defects are known to precede detection of visual field defects by approximately 6 years. Accurate early detection and monitoring of ONH and RNFL defects has become the prime focus of effective management of glaucoma. Optical coherence tomography employs ...
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Material and Methods: This study was conducted in ophthalmology department PNS Shifa, Karachi. From March 2013 to Jan 2015 for 23 months. A total of 350 glaucoma suspect patients were selected. A detailed history of ocular or systemic diseases was taken. Intraocular pressure (IOP) was measured using Goldmann Applanation tonometer. Optical Coherence Tomography (OCT) images were taken using Heide...
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ژورنال
عنوان ژورنال: Biosciences, Biotechnology Research Asia
سال: 2015
ISSN: 0973-1245
DOI: 10.13005/bbra/1966