نتایج جستجو برای: chamber

تعداد نتایج: 41494  

Journal: :Circulation 1966
S H Rahimtoola P A Ongley H J Swan

Anatomic In this paper a common (single) ventricle is defined as a ventricular chamber that receives the input of blood from both atrioventricular valves either separately or as a common atrioventricular valve" 2 (fig. 1). This common ventricular chamber may or may not communicate with a secondary, smaller outflow chamber. The two great vessels (aorta and pulmonary artery) may arise from the co...

Journal: :Investigative ophthalmology & visual science 2010
Carla J Siegfried Ying-Bo Shui Nancy M Holekamp Fang Bai David C Beebe

PURPOSE Vitrectomy, when followed by cataract surgery, increases the risk of open-angle glaucoma. This study was conducted in patients to determine whether these procedures are associated with increased exposure of the trabecular meshwork to oxygen. METHODS Oxygen distribution was recorded with a fiberoptic probe in patients undergoing surgery for cataract, glaucoma, or retinal disease. pO(2)...

Journal: :Investigative ophthalmology & visual science 1992
M Mori M Araie M Sakurai T Oshika

The time courses of changes in the effects of topical pilocarpine and tropicamide on the index of the blood-aqueous barrier permeability to plasma protein (Pin) were determined in normal volunteers. Before and after drug instillation in one eye, protein concentration in the anterior chamber (Ca) was determined from aqueous flare intensity with a laser flare-cell meter and from aqueous flow by f...

2011
Pedram Kazemian June Baron Kelvin Chow Mark Haykowsky Richard Thompson Ian Paterson

Introduction Left atrial volume (LaV) is an important predictor of outcome for many cardiovascular conditions. The most commonly used method to estimate LaV is the area-length (AL) biplane formula based upon LA measures from 2 and 4 chamber (CH) views. Given the asymetrical shape of the LA, we hypothesized that a formula incorporating measures from all 3 conventional long-axis views is a more a...

Journal: :Investigative ophthalmology & visual science 2015
Shi-Ming Li Ningli Wang Yuehua Zhou Si-Yuan Li Meng-Tian Kang Luo-Ru Liu He Li Yun-Yun Sun Bo Meng Si-Yan Zhan David A Atchison

PURPOSE To develop three-surface paraxial schematic eyes with different ages and sexes based on data for 7- and 14-year-old Chinese children from the Anyang Childhood Eye Study. METHODS Six sets of paraxial schematic eyes, including 7-year-old eyes, 7-year-old male eyes, 7-year-old female eyes, 14-year-old eyes, 14-year-old male eyes, and 14-year-old female eyes, were developed. Both refracti...

2011
Anika Amritanand Sheeja S. John Swetha S. Philip Deepa John Sarada David

Retained intraocular graphite foreign bodies are uncommon. Although they are generally inert, they have been reported to cause severe inflammatory reaction and progressive damage to intraocular structures. We report a case of a six-year-old girl with a retained intraocular graphite pencil lead foreign body in the anterior chamber of the eye and discuss the various considerations in the manageme...

Journal: :Investigative ophthalmology & visual science 2005
Lisa A Jones G Lynn Mitchell Donald O Mutti John R Hayes Melvin L Moeschberger Karla Zadnik

PURPOSE To compare ocular component growth curves among four refractive error groups in children. methods Cycloplegic refractive error was categorized into four groups: persistent emmetropia between -0.25 and +1.00 D (exclusive) in both the vertical and horizontal meridians on all study visits (n = 194); myopia of at least -0.75 D in both meridians on at least one visit (n = 247); persistent hy...

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