Results 71 to 80 of about 92,261,605 (285)

The distribution of childhood subjects with or without optic disc morphological changes in eyes with normal optic disc, disc suspects with enlarged cup-to-disc ratio, ocular hypertension, and glaucoma.

, 2015
Data are presented as number (%).*Comparison among the three groups by Chi-square test.The distribution of childhood subjects with or without optic disc morphological changes in eyes with normal optic disc, disc suspects with enlarged cup-to-disc ratio ...
Chan Kee Park (698195), Sung Eum Kim (766062), Hae-Young Lopilly Park (766061)   +2 more
core   +1 more source

Automatic determination of vertical cup-to-disc ratio in retinal fundus images for glaucoma screening [PDF]

, 2019
Glaucoma is a chronic progressive optic neuropathy that causes visual impairment or blindness, if left untreated. It is crucial to diagnose it at an early stage in order to enable treatment.
Guo, Jiapan, Petkov, Nicolai, Shi, Chenyu, Azzopardi, George, Azzopardi, George; id_orcid, Jansonius, Nomdo M., Jansonius, Nomdo M.; id_orcid   +6 more
core   +1 more source

Full‐Field Damage Monitoring in Architected Lattices Using In situ Electrical Impedance Tomography

Advanced Functional Materials, EarlyView.
In situ electrical impedance tomography (EIT) turns 3D‐printed, CNT‐infused architected lattices into full‐field damage‐imaging systems. Tunable Voronoi‐based geometries act as active sensing architectures, enabling conductivity maps to detect early‐stage damage and localise sequential ligament fracture before catastrophic failure.
Akash Deep, Andrea Samore, Alistair McEwan, Andrew McBride, Shanmugam Kumar   +4 more
wiley   +1 more source

Prediction of Cup-to-Disc Ratio From Optic Fundus Image [PDF]

, 2021
A technique is proposed that can be used to predict the cup-to-disc ratio from a single optic fundus image and determine which image features have the highest contribution to a specific ophthalmologist’s measured cup-to-disc ratio. The procedure starts with image pre-processing.
openaire   +1 more source

Critical Coupling in Semi‐Trasparent Fano Resonators for Photothermal Converters

Advanced Functional Materials, EarlyView.
An ultrathin metal–insulator multilayer architecture is engineered to exploit Fano‐resonant critical coupling, completely suppressing optical reflectance while achieving a balanced 50:50 trade‐off between absorbance and transmittance. Upon laser excitation at resonance, the metamaterial generates intense localized heat (ΔT≈550∘C$\Delta T {\approx }550^\
Giuseppe Emanuele Lio, Giuseppe Nicoletta, Roberto Caputo, Antonio Ferraro   +3 more
wiley   +1 more source

[Cup-to-disc ratio asymmetry in adolescents].

Arquivos brasileiros de oftalmologia, 2011
To determine the frequency of asymmetries greater than 0.2 in the cup-to-disc ratio of a population of adolescents.Fundus photographs of both eyes of 123 adolescents were digitized at the resolution of 300 pixels per inch (300 dpi), 8 bits, with a RBG color pattern.
Maria Elizabete Jimenes de, Campos, Denny Marcos, Garcia, Maria de Lourdes Veronese, Rodrigues   +2 more
openaire   +1 more source

Accurate, fast, data efficient and interpretable glaucoma diagnosis with automated spatial analysis of the whole cup to disc profile.

PLoS ONE, 2019
BackgroundGlaucoma is the leading cause of irreversible blindness worldwide. It is a heterogeneous group of conditions with a common optic neuropathy and associated loss of peripheral vision.
Ian J C MacCormick, Bryan M Williams, Yalin Zheng, Kun Li, Baidaa Al-Bander, Silvester Czanner, Rob Cheeseman, Colin E Willoughby, Emery N Brown, George L Spaeth, Gabriela Czanner   +10 more
doaj   +1 more source

Optic Disc Change during Childhood Myopic Shift: Comparison between Eyes with an Enlarged Cup-To-Disc Ratio and Childhood Glaucoma Compared to Normal Myopic Eyes. [PDF]

PLoS ONE, 2015
Progressive disc tilting and the development or enlargement of peripapillary atrophy (PPA) are observed during a myopic shift in children. This could be related to the changes around the optic nerve head during eyeball elongation.
Hae-Young Lopilly Park, Sung Eun Kim, Chan Kee Park   +2 more
doaj   +1 more source

Advances in Bio‐Integrated Edge Computing Systems for Smart and Connected Health

Advanced Materials, EarlyView.
This review explores advances in bio‐integrated edge computing for healthcare, focusing on co‐designing computing, sensing, and energy strategies to overcome integration and power challenges for optimized, decentralized operation. ABSTRACT Recent advances in bio‐integrated healthcare technologies have enabled continuous, high‐resolution monitoring and ...
Gyuwon Kim, Seungwon Yoo, Tae Woog Kang, Yunuo Huang, Woon‐Hong Yeo   +4 more
wiley   +1 more source

OCT-Based Quantification and Classification of Optic Disc Structure in Glaucoma Patients. [PDF]

PLoS ONE, 2016
PURPOSE:To objectively classify the optic discs of open-angle glaucoma (OAG) patients into Nicolela's four disc types, i.e., focal ischemic (FI), myopic (MY), senile sclerotic (SS), and generalized enlargement (GE), with swept-source optical coherence ...
Naoko Takada, Kazuko Omodaka, Tsutomu Kikawa, Airi Takagi, Akiko Matsumoto, Yu Yokoyama, Yukihiro Shiga, Kazuichi Maruyama, Hidetoshi Takahashi, Masahiro Akiba, Toru Nakazawa   +10 more
doaj   +1 more source