Sequential-Digital Image Correlation for Mapping Human Posterior Sclera and Optic Nerve Head Deformation
نویسندگان
چکیده
منابع مشابه
Measuring Deformation in the Mouse Optic Nerve Head and Peripapillary Sclera
Purpose To develop an ex vivo explant system using multiphoton microscopy and digital volume correlation to measure the full-field deformation response to intraocular pressure (IOP) change in the peripapillary sclera (PPS) and in the optic nerve head (ONH) astrocytic structure. Methods Green fluorescent protein (GFP)-glutamate transporter-GLT1 (GLT1/GFP) mouse eyes were explanted and imaged w...
متن کاملRacioethnic Differences in Human Posterior Scleral and Optic Nerve Stump Deformation
Purpose The purpose of this study was to quantify the biomechanical response of human posterior ocular tissues from donors of various racioethnic groups to better understand how differences in these properties may play a role in the racioethnic health disparities known to exist in glaucoma. Methods Sequential digital image correlation (S-DIC) was used to measure the pressure-induced surface d...
متن کاملDigital Image Processing for Ophthalmology: Detection of the Optic Nerve Head
DOWNLOAD HERE Fundus images of the retina are color images of the eye taken by specially designed digital cameras. Ophthalmologists rely on fundus images to diagnose various diseases that affect the eye, such as diabetic retinopathy and retinopathy of prematurity. A crucial preliminary step in the analysis of retinal images is the identification and localization of important anatomical structur...
متن کاملInvestigation of optimal digital image correlation patterns for deformation measurement
Digital image correlation (DIC) relies on the visible surface features of a specimen to measure deformation. When the specimen itself has little to no visible features, a pattern is applied to the surface which deforms with the specimen and acts as artificial surface features. Since recent pattern application methods, e.g., micro-stamping [1] and lithography [2] allow for the application of hig...
متن کاملFinite element modeling of the human sclera: influence on optic nerve head biomechanics and connections with glaucoma.
Scleral thickness, especially near the optic nerve head (ONH), is a potential factor of interest in the development of glaucomatous optic neuropathy. Large differences in the dimensions of the sclera, the principal load-bearing tissue of the eye, have been observed between individuals. This study aimed to characterize the effects of these differences on ONH biomechanics. Eleven enucleated human...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Biomechanical Engineering
سال: 2014
ISSN: 0148-0731,1528-8951
DOI: 10.1115/1.4026224