نتایج جستجو برای: wavelength automated perimetry

تعداد نتایج: 194549  

Journal: :Investigative ophthalmology & visual science 2003
Boel Bengtsson

PURPOSE To develop and test a short and reliable visual field threshold program for the early detection of glaucomatous visual field loss, by adapting the Swedish interactive test algorithm (SITA) to short-wavelength-automated-perimetry (SWAP). METHODS Computer simulations were performed to test the accuracy of several versions of SITA SWAP, and to optimize speed versus reliability. The selec...

Journal: :Journal of glaucoma 2009
Hiroki Nomoto Chota Matsumoto Sonoko Takada Shigeki Hashimoto Eiko Arimura Sachiko Okuyama Yoshikazu Shimomura

PURPOSE To compare the detectability between glaucomatous visual field changes using standard automated perimetry (SAP), frequency doubling technology (FDT), short-wavelength automated perimetry (SWAP), and flicker perimetry and structural changes using optical coherence tomography (OCT). PARTICIPANTS Fifty-nine eyes of fifty-nine patients with open-angle glaucoma, 24 eyes of 24 glaucoma susp...

Journal: :Arquivos brasileiros de oftalmologia 2007
Leopoldo Magacho Ricardo Reis Bernardo Magacho Marcos Pereira Avila

PURPOSE To test the agreement and correlation between the frequency doubling technology and the short wavelength perimetry in glaucoma. METHODS Glaucoma patients were selected from the Glaucoma Sector of CEROF - Universidade Federal de Goiás, and then underwent frequency doubling technology and short wavelength perimetry examinations in both eyes (if eligible) on the same day in a random sequ...

Journal: :journal of current ophthalmology 0
محمد ریاضی اصفهانی mohammad riazi esfahani زهرا اعلمی هرندی zahra aalami harandi سامان کیومهر saman kiumehr افسانه غلامی afsaneh gholmi عبدالرضا طبسی abdolreza tabasi نیلوفر پیری niloofar piri احمد میرشاهی

purpose : to evaluate the effects of memantine on improving visual function in patients with acute nonarteritic anterior ischemic optic neuropathy (naion) methods : this was a prospective, double masked, randomized, clinical trial. the study involved 47 subjects with unilateral naion of less than 8 weeks duration. eligible patients were randomly allocated to take either memantine tablets (5 mg ...

Journal: :Vision Research 2012
Robert O. Duncan Pamela A. Sample Christopher Bowd Robert N. Weinreb Linda M. Zangwill

PURPOSE Altered metabolic activity has been identified as a potential contributing factor to the neurodegeneration associated with primary open angle glaucoma (POAG). Consequently, we sought to determine whether there is a relationship between the loss of visual function in human glaucoma and resting blood perfusion within primary visual cortex (V1). METHODS Arterial spin labeling (ASL) funct...

Journal: :The British journal of ophthalmology 2006
J Landers A Sharma I Goldberg S Graham

BACKGROUND Traquair described the topography of visual field sensitivity as a "hill" or "island" of vision. Achromatic automated perimetry (AAP) demonstrates this shape of the visual field in photopic conditions. Techniques claimed to target the magnocellular pathway (frequency doubling perimetry, FDP) and those using a stimulus targeting the koniocellular pathway (short wavelength (or blue on ...

Journal: :Investigative ophthalmology & visual science 2009
Roger S Anderson Tony Redmond D Rodney McDowell Karen M M Breslin Margarita B Zlatkova

PURPOSE To compare directly the robustness of standard automated perimetry (SAP), short-wavelength automated perimetry (SWAP), frequency-doubling perimetry (FDP), and grating-resolution perimetry (GRP) stimuli to different degrees of intraocular stray light induced by commercially available opacity-containing filters. METHODS Five white opacity filters of increasing density were used to simul...

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