نتایج جستجو برای: retinal thickness

تعداد نتایج: 185201  

2017
Therese von Hanno Anette C. Lade Ellisiv B. Mathiesen Tunde Peto Inger Njølstad Geir Bertelsen

PURPOSE To provide sex-stratified normative data on retinal thickness and study the relationship with sex, age and refractive status. METHODS Population-based study including 2617 women and 1891 men, aged 38-87 (mean 61 ± 8) years, without diabetes, glaucoma and retinal diseases, and spherical equivalent refraction (SER) within ±6 dioptres. Retinal thickness was measured with optical coherenc...

Journal: :The British journal of ophthalmology 2003
B Alamouti J Funk

BACKGROUND/AIM In three dimensional optic disc tomography a reference plane is required to calculate optic disc rim or cup values. The position of the reference plane often depends on the retinal thickness at the temporal disc margin. Originally it was assumed that the retinal thickness at the temporal disc margin is independent of age. The aim of the study was to check this hypothesis using op...

2016
Semra Acer Yasemin I Balcı Gökhan Pekel Tuğba T Ongun Aziz Polat Ebru N Çetin Ramazan Yağcı

OBJECTIVES Evaluation of the peripapillary retinal nerve fiber layer thickness, subfoveal choroidal thickness, and retinal vessel caliber measurements in children with thalassemia minor. METHODS In this cross-sectional and comparative study, 30 thalassemia minor patients and 36 controls were included. Heidelberg spectral domain optical coherence tomography was used for peripapillary retinal n...

Journal: :journal of research in medical sciences 0
nurgã¼l ã–rnek departments of ophthalmology and 1dermatology and veneral diseases, school of medicine, kä±rä±kkale university, turkey zafer onaran departments of ophthalmology and 1dermatology and veneral diseases, school of medicine, kä±rä±kkale university, turkey mukadder koã§ak departments of ophthalmology and 1dermatology and veneral diseases, school of medicine, kä±rä±kkale university, turkey kemal ã–rnek departments of ophthalmology and 1dermatology and veneral diseases, school of medicine, kä±rä±kkale university, turkey

normal 0 false false false en-us x-none ar-sa background: this study was designed to investigate the effect of vitiligo on the retinal nerve fiber layer (rnfl) thickness. materials and methods: this prospective study was conducted in the department of ophthalmology at kä±rä±kkale university during 2010 and 2011.sixty eight eyes of 34 vitiligo patients were included in the study. eighty four eye...

2014
Hidetaka Noma Tatsuya Mimura Manami Kuse Katsunori Shimada

The objective of this study was to evaluate the relations among electroretinogram (ERG) parameters (cone a-wave, cone b-wave, and 30 Hz flicker), retinal thickness, and retinal volume in 16 patients with central retinal vein occlusion and macular edema. The amplitude and implicit time of the ERG parameters were extracted from the ERG traces. Retinal thickness and volume were measured by optical...

Journal: :The British journal of ophthalmology 2002
M Shahidi N P Blair M Mori J Gieser J S Pulido

AIM To determine the relation between alterations in the retinal topography and thickness, visual acuity, and retinal pigment epithelium hypopigmentation in atrophic age related macular degeneration (AMD). METHODS 22 patients, mean age 74 (SD 8) years, with atrophic AMD were recruited. An optical imaging system based on the retinal thickness analyser (RTA) was applied to generate a series of ...

2018
Jurre den Haan Sarah F. Janssen Jacoba A. van de Kreeke Philip Scheltens Frank D. Verbraak Femke H. Bouwman

Introduction The retina may reflect Alzheimer's disease (AD) neuropathological changes and is easily visualized with optical coherence tomography (OCT). Retinal thickness decrease has been correlated to AD, however, without information on amyloid status. We correlated retinal (layer) thickness to AD biomarkers in amyloid-positive early-onset AD (EOAD) patients and amyloid-negative controls. M...

2017
Scott A Read David Alonso-Caneiro Stephen J Vincent

Knowledge of the normal in vivo thickness of the retina, and its individual layers in pediatric populations is important for diagnosing and monitoring retinal disorders, and for understanding the eye's normal development and the impact of eye growth and refractive error such as myopia (short-sightedness) upon retinal morphology. In this prospective, observational longitudinal study, total retin...

2017
Hyun Seung Yang Jong Eun Woo Min-ho Kim Dong Yoon Kim Young Hee Yoon

We investigated the relationship between the peripapillary retinal nerve fiber layer and peripapillary retinal thickness in patients with diabetic macular edema. Fifty eyes (group I) with non-proliferative diabetic retinopathy and diabetic macular edema receiving intravitreal anti-VEGF injection, and 90 eyes (group II) without diabetic macular edema were included in this case-control study. The...

Journal: :Acta medica portuguesa 2015
Tatiana Queirós Cristina Freitas Sandra Guimarães

INTRODUCTION Optical coherence tomography is a technology that allows obtaining high resolution images of tissues in vivo, enabling the measurement of ocular structures, including the retinal nerve fiber layer and macular thickness. As a noninvasive test it's particularly useful in children, but its applicability is limited by the existence of normative values for adults only. PURPOSE To esta...

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