检索结果-南通市图书馆

Accommodation in human eye models:a comparison between the optical designs of Navarro,Arizona and Liou-Brennan

International Journal of Ophthalmology(English edition) 2017年第1期10卷 43-50页

作者： Georgios Zoulinakis Jose Juan Esteve-Taboada teresa ferrer-blasco David Madrid-Costa Robert Montés-Mico Department of Optics and Physics Faculty University 46100Spain Optometry and Vision Sciencesof ValenciaBurjassotValencia Interuniversity laboratory for research in Vision and Optometry Mixed group University of ValenciaUniversity of MurciaSpain

AIM： To simulate and compare accommodation in accommodative and non-accommodative human eye ***： Ray tracing and optical design program was used. Three eye models were designed and studied： the Navarro, the Arizona and the Liou-Brennan. In order to make the Navarro and Liou-Brennan models to accommodate, specific geometric parameters of the models were altered with values that were chosen from the literature. For the Arizona model, its’ mathematical functions for accommodation were used for the same accommodative demands. The simulation included four distances of accommodation for each model： at infinity, 3, 1 and 0.5 *** results were diffraction images of a “letter F” for graphical comparison, spot diagrams on the retinal field and Modulation Transfer Function （MTF） ***：Zernike coefficients for the aberrations, Airy disk diameter, root mean square （RMS） error diameter and total axial length of the model were provided from the program. These were compared between them in all distances. The Navarro model had the smallest axial length change as a simple model. The Arizona did not change its axial length because it is designed to be accommodative. The Liou-Brennan model had different results concerning the aberrations because of the decentration of the pupil. The MTF graphs showed small differences between the models because of the differences in their ***： All the three models are able to simulate accommodation with the expected results. There is no model that can be assumed as the best choice. Accommodation can be simulated in non-accommodativemodels and in customized ones.

关键词： accommodation design eye model optical

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Device interchangeability on anterior chamber depth and white-to-white measurements: a thorough literature review

引用

International Journal of Ophthalmology(English edition) 2016年第7期9卷 1057-1065页

作者： Alberto Domínguez-Vicent Cari Pérez-Vives teresa ferrer-blasco Santiago García-Lázaro Robert Montés-Micó Optometry Research Group (GIO) Department of Optics and Optometry and Visual Science University of Valencia

We have reviewed a set of recently published studies that compared the anterior chamber depth（ACD） and/or white-to-white（WTW） distance obtained by means of different measuring *** some of those studies reached contradictory conclusions regarding device interchangeability,this review was carried out in attempting to clarify which clinical devices can or cannot be considered as interchangeable in clinical practice to measure ACD and/or WTW distance,among these devices：A-scan,ultrasound biomicroscopy,Orbscan and Orbscan Ⅱ（Bausch＆Lomb Surgical Inc.,San Dimas,California,USA）,Pentacam and Pentacam HR（Oculus,Wetzlar,Germany）,Galilei（Ziemer,Switzerland）,Visante optical coherence tomography（Visante OCT,Carl Zeiss Meditec Inc.,Dublin,California,USA）,lOLMaster（Carl Zeiss Meditec,Jena,Germany）,and Lenstar LS 900/Biograph（Haag-Streit AG,Koeniz,Switzerland/Alcon Laboratories Inc.,Ft Worth,Texas,USA）.

关键词： anterior camber depth measurement white to white measurement device interchangeability anterior chamber eye

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Repeatability of in-vitro optical quality measurements of intraocular lenses with a deflectometry technique effect of the toricity

引用

International Journal of Ophthalmology(English edition) 2018年第7期11卷 1139-1144页

作者： teresa ferrer-blasco Alberto Dominguez-Vicent Santiago Garcia-Lazaro Maria Amparo Diez-Ajenjo Jose F.Alfonso Jose J.Esteve-Taboada Department of Optics and Optometry and Visual Science University of Valencia Valencia 46100 Spain Clinica Optometrica Fundacio Lluis Alcanyis Universitat de Valencia Valencia 46020 Spain Surgery Department Fernandez-Vega Ophthalmological Institute Oviedo 33012 Spain School of Medicine University of Oviedo Oviedo 33006 Spain

AIM： To evaluate the repeatability of an optical device for measuring the Zernike coefficients of toric intraocular lenses（IOLs） and assess whether its toricity has any impact in its repeatability. METHODS： An experienced technician used the NIMO TR1504 to measure the Zernike coefficients 30 times for an aperture of 4.50 mm for all lenses included. The IOLs included were divided into two group： toric and nontoric ones. The cylindrical powers of the toric lenses included in the present study were 1.00, 1.50, 2.25, 3.00 and 3.75 D. Finally, the repeatability of the NIMO TR1504 was described in terms of within subject standard deviation（Sw） and repeatability limit. RESULTS： The Sw was smaller than 0.011 μm for both lens groups and all Zernike coefficients, and the difference between both groups was smaller than 0.004 μm for all Zernike coefficients. Regarding the repeatability limit, this value was smaller than 0.025 μm for the toric lens group, and smaller than 0.031 μm for the non-toric lens one for all Zernike coefficients. Furthermore, the maximum difference between both lens groups was 0.010 μm. CONCLUSION： The repeatability of the NIMO TR1504 to measure the optical quality is high and independent of the lens toricity. These results reflect that this system is robust and could be used to measure the in-vitro optical quality of either toric or non-toric IOLs.

关键词： in-vitro measurements optical quality intraocular lens repeatability

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Evaluation of the iridocorneal angle with accommodation using optical coherence tomography

引用

International Journal of Ophthalmology(English edition) 2017年第10期10卷 1614-1616页

作者： Daniel Monsálvez-Romín Antonio Del águila-Carrasco teresa ferrer-blasco José J.Esteve-Taboada Robert Montés-Micó Optics and Optometry and Vision Sciences Department University of Valencia

The changes in the iridocorneal angle structure during accommodation are assessed by means of anterior segment optical coherence *** right eyes were included in the *** device used for the measurement was the Visante？omni *** stimuli were set up at different vergences（0.0 D,-1.5 D,and-3.0 D）.The angle opening distance 500 and 750,the trabecular iris space area 500 and 750,and the scleral spur angle parameters were assessed at the nasal and temporal *** results in the iridotrabecular angle comparing the three accommodative states of the eye did not yield any statistically significant difference at nasal or temporal angle *** light of our results and in the conditions of our study,the structures of the iridocorneal angle are not significantly changed with accommodation.

关键词： iridocorneal angle accommodation optical coherence tomography anterior segment

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Adaptive optics as a tool for controlling the optical signals reaching the retina

引用

Annals of Eye Science 2017年第1期 331-333页

作者： JoséJ.Esteve-Taboada teresa ferrer-blasco Robert Montés-Micó Department of Optics and Optometry and Vision Sciences University of ValenciaValenciaSpain

The use of adaptive optics systems in ophthalmic research studies has increased in the last years thanks to the development of more accurate *** optics was first introduced in Astronomy for the correction of the effects produced by the turbulences of the Earth’s atmosphere when observing astronomical objects(1,2).Sophisticated deformable mirrors controlled by computers can correct in real time atmospheric disturbances,allowing for much finer details on the images of distance *** optics technology makes it possible to correct many of the aberrations with which the wavefront,i.e.,the geometric envelope of all the rays of light that emerged at the same time of the observed object,*** optics allows for obtaining sharper images,and thus,with better spatial resolution.

关键词： optics details correction

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

On the effect of pitch and yaw angles in oblique impacts of smallcaliber projectiles

引用

Defence Technology（防务技术） 2024年第1期31卷 73-94页

作者： teresa Fras French-German Research Institute of Saint-Louis(ISL) Saint-LouisFrance

A terminal ballistic analysis of the effects of 7.62 mm × 51 AP P80 rounds on inclined high-strength armor steel plates is the focus of the presented *** findings of an instrumented ballistic testing combined with 3D advanced numerical simulations performed using the IMPETUS Afea? software yielded the *** experimental verification proved that slight differences in the pitch-andyaw angles of a projectile upon an impact caused different damage types to the projectile’s *** residual velocities predicted numerically were close to the experimental values and the calculated core deviations were in satisfactory agreement with the experimental *** extended matrix of the core deviation angles with combinations of pitch-and-yaw upon impact angles was subsequently built on the basis of the numerical *** presented experimental and numerical investigation examined thoroughly the influence of the initial pitch and yaw angles on the after-perforation projectile’s performance.

关键词： Ballistic impact Small-caliber projectile Pitch and yaw impact angles Shadowgraphy IMPETUS Afea Numerical simulations

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Differential response of injured and healthy retinas to syngeneic and allogeneic transplantation of a clonal cell line of immortalized olfactory ensheathing glia:a double-edged sword

引用

Neural Regeneration Research 2025年第8期20卷 2395-2407页

作者： María Norte-Muñoz María Portela-Lomba Paloma Sobrado-Calvo Diana Simón Johnny Di Pierdomenico Alejandro Gallego-Ortega Mar Pérez JoséMCabrera-Maqueda Javier Sierra Manuel Vidal-Sanz María teresa Moreno-Flores Marta Agudo-Barriuso Grupo de Investigación Oftalmología Experimental Departamento de OftalmologíaOptometríaOtorrinolaringología y Anatomía PatológicaFacultad de MedicinaUniversidad de MurciaInstituto Murciano de Investigación Biosanitaria(IMIB)Campus de Ciencias de la SaludMurciaSpain Experimental Sciences Faculty Universidad Francisco de VitoriaPozuelo de AlarcónMadridSpain Anatomy Histology and Neuroscience DepartmentMedicine FacultyUniversidad Autónoma de MadridMadridSpain Center of Neuroimmunology Service of NeurologyLaboratory of Advanced Imaging in Neuroimmunological DiseasesHospital Clínic of BarcelonaInstitut d’Investigacions Biomèdiques August Pi i Sunyer(IDIBAPS)and Universitat de BarcelonaBarcelonaSpain Medicine Faculty Universidad Francisco de VitoriaPozuelo de AlarcónMadridSpain

Olfactory ensheathing glia promote axonal regeneration in the mammalian central nervous system,including retinal ganglion cell axonal growth through the injured optic ***,it is unknown whether olfactory ensheathing glia also have neuroprotective *** ensheathing glia express brain-derived neurotrophic factor,one of the best neuroprotectants for axotomized retinal ganglion ***,we aimed to investigate the neuroprotective capacity of olfactory ensheating glia after optic nerve *** ensheathing glia cells from an established rat immortalized clonal cell line,TEG3,were intravitreally injected in intact and axotomized retinas in syngeneic and allogeneic mode with or without microglial inhibition or immunosuppressive *** and gene expression analyses were *** bulb-derived primary olfactory ensheathing glia and TEG3 express major histocompatibility complex classⅡ*** and syngenically transplanted TEG3 cells survived in the vitreous for up to 21 days,forming an *** axotomized retinas,only the allogeneic TEG3 transplant rescued retinal ganglion cells at 7 days but not at 21 *** these retinas,microglial anatomical activation was higher than after optic nerve crush *** intact retinas,both transplants activated microglial cells and caused retinal ganglion cell death at 21 days,a loss that was higher after allotransplantation,triggered by pyroptosis and partially rescued by microglial inhibition or ***,neuroprotection of axotomized retinal ganglion cells did not improve with these *** different neuroprotective properties,different toxic effects,and different responses to microglial inhibitory treatments of olfactory ensheathing glia in the retina depending on the type of transplant highlight the importance of thorough preclinical studies to explore these variables.

关键词： cell therapy immune recognition major histocompatibility complex class II(MHCII) neuroprotection olfactory ensheathing glia retinal ganglion cells

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

On the Perturbation of Semi-Fredholm Relations with Complemented Ranges and Null Spaces

引用

Acta Mathematica Sinica,English Series 2010年第8期26卷 1545-1554页

作者： teresa LVAREZ Department of Mathematics University of Oviedo

Multivalued semi-Fredholm type linear operators with complemented ranges and null spaces are introduced. Conditions are obtained under which the classes given are stable under compact, strictly singular and strictly c... 详细信息

关键词： Left-Atkinson relation right-Atkinson relation strictly singular strictly cosingular perturbation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

LEFT-RIGHT BROWDER LINEAR RELATIONS AND RIESZ PERTURBATIONS

引用

Acta Mathematica Scientia 2017年第5期37卷 1437-1452页

作者： teresa ALVAREZ Department of Mathematics University of Oviedo33007OviedoAsturiasSpain

A closed linear relation T in a Banach space X is called left(resp. right) Fredholm if it is upper(resp. lower) semi Fredholm and its range(resp. null space) is topologically complemented in X. We say that T is left(resp. right) Browder if it is left(resp. right)Fredholm and has a finite ascent(resp. descent). In this paper, we analyze the stability of the left(resp. right) Fredholm and the left(resp. right) Browder linear relations under commuting Riesz operator perturbations. Recent results of Zivkovic et al. to the case of bounded operators are covered.

关键词： left and right Fredholm linear relations left and right Browder linear relations Riesz perturbations

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The plasticity of plasticity:lesson from remote microglia induced by focal central nervous system injury

引用

Neural Regeneration Research 2020年第1期15卷 57-58页

作者： Maria teresa Viscomi Institute of Histology and Embriology Università Cattolica del S.Cuore

The last decades have represented an important season in the re-conceptualization of brain plasticity,especially in extending the concept at events occurring beyond the developmental stage and in demonstrating the profound impact of these changes on so-called spontaneous recovery after central nervous system(CNS)*** study of the cellular,molecular,functional and structural mechanisms involved in brain plasticity has clearly emphasized the multitude of players engaged in this phenomenon,leading to the conceptualization that non-neuronal cells and non-neuronal mechanisms intervene in these changes and orchestrate some of the responses observed(Werner and Stevens,2015).Among the different non-neuronal cells and non-neuronal substrates of injury-induced plasticity is becoming increasingly recognized that microglia drive a series of intrinsic CNS responses after damage(Sandvig et al.,2018;Bisicchia et al.,2019).

关键词： plasticity system injuries

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：