نتایج جستجو برای: scleral fixation

تعداد نتایج: 55586  

Journal: :Investigative ophthalmology & visual science 2000
A J Bellezza R T Hart C F Burgoyne

PURPOSE To study the relationship between intraocular pressure (IOP) and the IOP-related stress (force/cross-sectional area) it generates within the load-bearing connective tissues of the optic nerve head. METHODS Thirteen digital, three-dimensional geometries were created representing the posterior scleral shell of 13 idealized human eyes. Each three-dimensional geometry was then discretized...

2017
Anastasia Lyon Amanda K. Powers Joshua B. Gross Kelly E. O’Quin

The sclera is the protective outer layer of the eye. In fishes, birds, and reptiles, the sclera may be reinforced with additional bony elements called scleral ossicles. Teleost fish vary in the number and size of scleral ossicles; however, the genetic mechanisms responsible for this variation remain poorly understood. In this study, we examine the inheritance of scleral ossicles in the Mexican ...

Journal: :Investigative ophthalmology & visual science 2001
N A McBrien L M Cornell A Gentle

PURPOSE The development of high myopia is associated with scleral thinning and changes in the diameter of scleral collagen fibrils in humans. In the present study, the association between these scleral changes and the losses in scleral tissue that have previously been reported in animal models were investigated to determine the relationship between changes in collagen fibril architecture and th...

Journal: :Journal of optometry 2015
Richard Trevino Brandi Stewart

PURPOSE Manometric studies have found that intraocular pressure (IOP) rises 116-350 mmHg during scleral depression in surgical settings. No information is available regarding the effect of scleral depression on IOP in routine clinical settings. The aim of this study is to quantify the change in IOP that occurs when scleral depression is performed on normal eyes in a routine clinical setting. ...

Journal: :Contact lens & anterior eye : the journal of the British Contact Lens Association 2015
Nienke Soeters Esther Simone Visser Saskia M Imhof Nayyirih G Tahzib

OBJECTIVES To investigate the influence of full scleral lenses on corneal curvature and pachymetry in keratoconus patients. METHODS In this intervention study, 20 eyes of 14 patients were measured by Scheimpflug imaging (Pentacam HR, Oculus) at two time points: directly and ≥1 week after scleral lens removal. Steep, flat and maximal keratometry (K(steep), K(flat) and K(max)) and optical pachy...

Journal: :Contact lens & anterior eye : the journal of the British Contact Lens Association 2014
Eef van der Worp Dina Bornman Daniela Lopes Ferreira Miguel Faria-Ribeiro Nery Garcia-Porta José M González-Meijome

Scleral contact lenses (ScCL) have gained renewed interest during the last decade. Originally, they were primarily used for severely compromised eyes. Corneal ectasia and exposure conditions were the primary indications. However, the indication range of ScCL in contact lens practices seems to be expanding, and it now increasingly includes less severe and even non-compromised eyes, too. All lens...

2017
Yingjie Zhang Dan-Ning Hu Yi Zhu Hao Sun Ping Gu Dongqing Zhu Jibo Zhou

PURPOSE To identify an effective method to prevent myopia progression by characterizing the regulation of matrix metalloproteinase- (MMP-) 2 expression and its secretion from scleral fibroblasts and retinal pigment epithelium (RPE) cells by miR-29a. METHODS The effects of miR-29a on the growth of scleral fibroblasts and RPE cells were assessed using the cell counting kit-8. The changes in MMP...

Journal: :بینا 0
حسین دهقان h dehghan تهران- پاسداران- بوستان نهم- بیمارستان شهید لبافی نژاد- مرکز تحقیقات چشم مصطفی فقهی m feghhi دانشگاه علوم پزشکی اهواز حمید احمدیه h ahmadieh تهران- پاسداران- بوستان نهم- بیمارستان شهید لبافی نژاد- مرکز تحقیقات چشم مسعود سهیلیان m soheilian تهران- پاسداران- بوستان نهم- بیمارستان شهید لبافی نژاد- مرکز تحقیقات چشم محسن آذرمینا m azarmina تهران- پاسداران- بوستان نهم- بیمارستان شهید لبافی نژاد- مرکز تحقیقات چشم سیامک مرادیان s moradian دانشگاه علوم پزشکی شهید بهشتی علیرضا رمضانی

purpose: to evaluate the effect of oral prednisolone on visual outcome and complications of scleral buckling (sb) in patients with rhegmatogenous retinal detachment (rrd). methods: in a randomized double-blind placebo-controlled trial, patients with acute rrd who underwent sb were randomly divided into two groups. oral prednisolone was administered for the treatment group and placebo for the co...

Journal: :International Journal Of Medical Science And Clinical Invention 2021

Abstract:
 Aims: To study of anatomical and visual outcome in secondary scleral fixated intra-ocular lens implantation
 Settings Design: Hospital based prospective case conducted at a tertiary care centre over period 2 years.
 Methods Material: 30 eyes patients underwent fixation IOL by 2-point Ab-externo technique. Post-operatively best corrected acuity, IOP, Keratometry complic...

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