نتایج جستجو برای: choroidal fold

تعداد نتایج: 150365  

Journal: :Investigative ophthalmology & visual science 2013
Toshihiko Nagasawa Yoshinori Mitamura Takashi Katome Kayo Shinomiya Takeshi Naito Daisuke Nagasato Yukiko Shimizu Hitoshi Tabuchi Yoshiaki Kiuchi

PURPOSE We evaluated the choroidal thickness and volume in healthy pediatric individuals by swept-source optical coherence tomography (SS-OCT) and compared the findings to those of adults. METHODS We examined 100 eyes of 100 healthy pediatric volunteers (3-15 years) and 83 eyes of 83 healthy adult volunteers (24-87 years) by SS-OCT with a tunable long wavelength laser source. The three-dimens...

2012
Joong Won Shin Yong Un Shin Hee Yoon Cho Byung Ro Lee

PURPOSE To study choroidal thickness and its topographic profile in normal eyes using 3D OCT-1000 spectral domain optical coherence tomography and the correlation with age and refractive error. METHODS Fifty-seven eyes (45 individuals) with no visual complaints or ocular disease underwent horizontal and vertical line scanning using 3D OCT-1000. The definition of choroidal thickness was the ve...

2013
Nan-Kai Wang Chi-Chun Lai Chai Lin Chou Yen-Po Chen Lan-Hsin Chuang An-Ning Chao Hsiao-Jung Tseng Chee-Jen Chang Wei-Chi Wu Kuan-Jen Chen Stephen H. Tsang

OBJECTIVES Validation of choroidal thickness and other biometrics measured by spectral domain optical coherence tomography (SD-OCT) in predicting lacquer cracks formation in highly myopic eyes. METHODS Patients with a refractive error worse than -8 diopters and moderate myopic maculopathy were recruited into two groups based on the presence or absence of lacquer cracks (36 eyes without and 33...

2014
Solmaz Abdolrahimzadeh Lorenzo Felli Domenica Carmen Piraino Roberto Mollo Stefano Calvieri Santi Maria Recupero

BACKGROUND Neurofibromatosis type 1 (NF1) is an autosomal dominant disorder involving aberrant proliferation of multiple tissues of neural crest origin. Retinal vascular alterations in NF1 have rarely been reported in the literature and their nature is not clear. This study describes distinctive retinal microvascular alterations and their relationship to choroidal nodules in patients with neuro...

Journal: :The British journal of ophthalmology 1993
T Kubota J B Jonas G O Naumann

A decreased count of retinal photoreceptors all over the fundus and a loss of retinal pigment epithelium cells mainly in the parapapillary region have been reported to be associated with glaucoma. This study addressed the question whether this cell loss in the deep retinal layers may be connected with a change of the choroidal thickness in glaucomatous eyes. Histological sections of 12 eyes wit...

Journal: :AJNR. American journal of neuroradiology 1998
C Stroszczynski N Hosten N Bornfeld T Wiegel A Schueler P Foerster A J Lemke K T Hoffmann R Felix

BACKGROUND AND PURPOSE The aim of this study was to establish the MR imaging characteristics of choroidal hemangioma and to compare them with those of uveal melanoma. METHODS Among 41 patients examined at 1.5 T (4-cm surface coil, T1-weighted and fast spin-echo T2-weighted sequences), 25 had uveal melanoma and 16 had circumscribed choroidal hemangioma. After i.v. bolus injection of gadopentet...

2015
Massimiliano Farina Cristiano Ratti Eugenio Novelli

To date, choroidal blood flow reduction in highly myopic eyes appears to be related to the development of choroidal neovascularization secondary to local reduction of arterial flow. Instead, no evidence of choroidal neovascularization was found in subjects with low or moderate myopia. The authors' aim has been to encourage new studies regarding the potential role of chronic retinal venous conge...

2012
Zenith H.Y. Wu Michelle Y.Y. Wong Timothy Y.Y. Lai

Choroidal osteoma is an uncommon benign osseous intraocular tumor that typically affects young adult women. Choroidal neovascularization (CNV) is one of the complications that can develop in eyes with choroidal osteoma. We present a case of CNV secondary to choroidal osteoma treated with intravitreal ranibizumab. A 57-year-old lady presented with painless loss of vision with a right-eye visual ...

Journal: :Investigative ophthalmology & visual science 2010
Yasushi Ikuno Kana Kawaguchi Takeyoshi Nouchi Yoshiaki Yasuno

Purpose. To study posterior choroidal thickness and its profile based on location in healthy Japanese subjects and the correlation with axial length, refractive error (RE), and age. Methods. Eighty-six eyes of 43 healthy volunteers with no ophthalmic or systemic symptoms were examined with prototype high-penetration optical coherence tomography using a 1060-nm light source. Eyes with high myopi...

Journal: :AJNR. American journal of neuroradiology 2015
W Brinjikji D F Kallmes H J Cloft G Lanzino

BACKGROUND AND PURPOSE Treatment of cerebral aneurysms with flow diverters often mandates placement of the device across the ostia of major branches of the internal carotid artery. We determined the patency rates of the anterior choroidal artery after placement of flow-diversion devices across its ostium. MATERIALS AND METHODS We analyzed a consecutive series of patients in whom a Pipeline Em...

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