Results 81 to 90 of about 4,454,846 (215)

Ultrasonographic Ocular Biometry of the Greater Caribbean Manatee (Trichechus manatus manatus)

Veterinary Ophthalmology, EarlyView.
ABSTRACT This study aimed to characterize the ocular biometry of the Trichechus manatus manatus applying B‐mode ultrasonography across different age groups. Twenty‐two animals were assessed employing a portable ultrasound device equipped with a linear transducer. Five ocular parameters were assessed: corneal thickness (CT), anterior chamber depth (ACD),
Radan Elvis Matias de Oliveira, Fernanda Loffler Niemeyer Attademo, Rita de Kássia Matias de Oliveira, Romário Parente dos Santos, Fábia de Oliveira Luna, Antonio A. Mignucci‐Giannoni, Lesly J. Cabrias‐Contreras, Fabrício Bezerra de Sá, Flávio José de Lima Silva, Augusto Carlos da Bôaviagem Freire, Moacir Franco de Oliveira   +10 more
wiley   +1 more source

A simple accurate method of cataract classification Cataract I

Indian Journal of Ophthalmology, 1989
A simple and accurate system of cataract classification using slit lamp and direct ophthalmoscope is reported. Lens opacities are classified into cortical (anterior and posterior), nuclear and posterior sub-capsular and each sub-type of opacity is graded,
Sharma Y, Vajpayee R, Bhatnagar R, Mohan Madan, Azad R, Kumar Mukesh, Nath Ram   +6 more
doaj  

Repeatability of \u3cem\u3eIn Vivo\u3c/em\u3e Parafoveal Cone Density and Spacing Measurements [PDF]

, 2012
Purpose. To assess the repeatability and measurement error associated with cone density and nearest neighbor distance (NND) estimates in images of the parafoveal cone mosaic obtained with an adaptive optics scanning light ophthalmoscope (AOSLO).Methods ...
Carroll, Joseph, Cooper, Robert F., Dubis, Adam M., Dubra, Alfredo, Garrioch, Robert, Langlo, Christopher S.   +5 more
core   +1 more source

Long-term in vivo imaging and measurement of dendritic shrinkage of retinal ganglion cells [PDF]

, 2011
PURPOSE. To monitor and measure dendritic shrinkage of retinal ganglion cells (RGCs) in a strain of transgenic mice (Thy-1 YFP) that expresses yellow fluorescent proteins in neurons under the control of a Thy-1 promoter. METHODS. A total of 125 RGCs from
Chen, LJ, Cheung, CYL, Choi, N, Crowston, JG, Lam, DSC, Leung, CKS, Li, ZW, Lindsey, JD, Liu, L, Liu, S, Pang, CP, Pu, M, Qiu, K, So, KF, Weinreb, RN, Ye, C, Yung, WH   +16 more
core   +1 more source

Population‐Based Cohort Study for Development of National Retinopathy of Prematurity Screening Criteria

Acta Paediatrica, Volume 115, Issue 3, Page 671-678, March 2026.
ABSTRACT Aim Screening criteria for retinopathy of prematurity (ROP) vary among countries. Early detection of ROP and minimising the burden of screening are important. Methods We analysed data from very preterm infants born in Switzerland between 2006 and 2022.
R. Gerull, C. Sanchez, A. Atkinson, M. Schuler‐Barazzoni, M. Adams, F. Barcos Munoz, C. Gerth‐Kahlert, S. M. Schulzke, on behalf of the Swiss Neonatal Network, Ph. Meyer, L. Eisenhut, M. Bryant, A. Kidszun, T. Riedel, M. Gebauer, B. Rogdo, B. Wagner, R. E. Pfister, J.‐F. Tolsa, J. Schneider, M. Stocker, P. Gessler, B. Laubscher, J. Llor, A. Malzacher, A. Birkenmaier, L. Hegi, V. Bernet, M. Tomaske, D. Bassler, V. Cannizzaro, C. Hagmann   +31 more
wiley   +1 more source

Smartphone-based, rapid, wide-field fundus photography for diagnosis of pediatric retinal diseases [PDF]

, 2019
PurposeAn important, unmet clinical need is for cost-effective, reliable, easy-to-use, and portable retinal photography to evaluate preventable causes of vision loss in children.
Besirli, Cagri G., Dedania, Vaidehi S., Demirci, Hakan, Fletcher, Daniel A., Kim, Tyson N., Lieu, Philip, Margolis, Todd, Patel, Tapan P., Paulus, Yannis M., Qian, Cynthia X., Yu, Gina   +10 more
core   +2 more sources

From Aid Dependency to Self‐Reliance: Lessons From Sierra Leone and Rwanda's Strategies for Eliminating Preventable Blindness in Africa: A Perspective Study

Health Science Reports, Volume 9, Issue 2, February 2026.
ABSTRACT Background and Aims Preventable blindness remains a leading cause of disability in low‐income countries (LICs), with 91.5% of cases in Sierra Leone and 83.9% in Rwanda considered avoidable. Reliance on foreign aid has supported eye care development in Africa, yet has also fostered systemic dependency.
Babatunde Ismail Bale, Lynette Delali Amematekpor, Ebunoluwa Anne Ajibola‐Ajo, Seriki Yetunde Mutiat, Ojo Onakhe Emmanuel, Adeleke Oluwatimilehin   +5 more
wiley   +1 more source

Properly Speaking, Sir Isaac Newton Was the First Perceptual Psychologist and, Therefore, the First Psychologist

Color Research &Application, Volume 51, Issue 1, January/February 2026.
Newton’s insight that “the rays are not colored” anticipated a constructivist view of perception in which physical stimuli provide input but perceptual qualities arise from neural processing. Framed by Newton’s view, early sensory psychology and modern neuroscience converged on the conclusion that color is an internally generated percept, shaped by ...
Billy R. Wooten, Billy R. Hammond
wiley   +1 more source

\u3cem\u3eIn vivo\u3c/em\u3e Imaging of Human Retinal Microvasculature Using Adaptive Optics Scanning Light Ophthalmoscope Fluorescein Angiography [PDF]

, 2013
The adaptive optics scanning light ophthalmoscope (AOSLO) allows visualization of microscopic structures of the human retina in vivo. In this work, we demonstrate its application in combination with oral and intravenous (IV) fluorescein angiography (FA ...
Carroll, Joseph, Chui, Toco Y.P., Dubow, Michael, Dubra, Alfredo, Pinhas, Alexander, Rosen, Richard B., Scoles, Drew, Shah, Nishit, Sulai, Yusufu N., Walsh, Joseph B., Weitz, Rishard   +10 more
core   +1 more source

Automated Diagnosis of Hypertensive Retinopathy Using Res‐UNet and Graph Convolutional Networks

Healthcare Technology Letters, Volume 13, Issue 1, January/December 2026.
The proposed framework integrates retinal vessel segmentation and artery/vein classification using deep residual UNET and GCN models for hypertensive retinopathy diagnosis. By computing the arteriovenous ratio, the method accurately detects HR stages from retinal fundus images. The system achieves reliable performance using the DRIVE dataset.
Esra'a Mahmoud Jamil AL Sariera
wiley   +1 more source