Results 51 to 60 of about 13,588 (174)

Noninvasive imaging of the human rod photoreceptor mosaic using a confocal adaptive optics scanning ophthalmoscope

Biomedical Optics Express, 2011
The rod photoreceptors are implicated in a number of devastating retinal diseases. However, routine imaging of these cells has remained elusive, even with the advent of adaptive optics imaging.
A. Dubra, Y. Sulai, J. L. Norris, R. F. Cooper, A. Dubis, David R. Williams, J. Carroll   +6 more
semanticscholar   +1 more source

Ensino de oftalmologia na graduação médica: Estudo comparativo de aprendizado na oftalmoscopia direta com oftalmoscópio convencional e de campo amplo (Panoptic) Teaching ophthalmology at university medical undergraduate course: Comparative study of direct ophthalmoscopy between conventional ophthalmoscope and wide field ophthalmoscope (panoptic) as evaluation method

Revista Brasileira de Oftalmologia, 2009
Objetivo: Comparação da facilidade de aprendizado na realização da oftalmoscopia direta pelos alunos da graduação médica com o uso do oftalmoscópio convencional e do Panoptic. Métodos: Realizou- se um estudo comparativo da facilidade de aprendizado entre
Eduardo de França Damasceno, Nadyr Antonia Pereira Damasceno, Adroaldo de Alencar Costa Filho   +2 more
doaj   +1 more source

Non-invasive assessment of human cone photoreceptor function.

Biomedical Optics Express, 2017
Vision begins when light isomerizes the photopigments within photoreceptors. Noninvasive cellular-scale observation of the structure of the human photoreceptor mosaic is made possible through the use of adaptive optics (AO) enhanced ophthalmoscopes, but ...
R. F. Cooper, William S. Tuten, A. Dubra, D. Brainard, J. I. Morgan   +4 more
semanticscholar   +1 more source

Wide-field fundus autofluorescence corresponds to visual fields in chorioretinitis patients

Clinical Ophthalmology, 2011
Florian Seidensticker1, Aljoscha S Neubauer1, Tamer Wasfy1,2, Carmen Stumpf1, Stephan R Thurau1,*, Anselm Kampik1, Marcus Kernt1,*1Department of Ophthalmology, Ludwig-Maximilians-University, Munich, Germany; 2Department of Ophthalmology, Tanta University,
Seidensticker F, Neubauer AS, Wasfy T, Stumpf C, Thurau SR, Kampik A, Kernt M   +6 more
doaj  

Single pixel camera ophthalmoscope

, 2016
Ophthalmoscopes to image the retina are widely used diagnostic tools in ophthalmology and are vital for the early detection of many eye diseases. Although there are various effective optical implementations of ophthalmoscopes, new, robust systems may ...
B. Lochocki, Adrián Gambín, S. Manzanera, E. Irles, E. Tajahuerce, J. Lancis, P. Artal   +6 more
semanticscholar   +1 more source

Single-pixel imaging of the retina through scattering media.

Biomedical Optics Express, 2019
Imaging the retina of cataractous patients is useful to detect pathologies before the cataract surgery is performed. However, for conventional ophthalmoscopes, opacifications convert the lens into a scattering medium that may greatly deteriorate the ...
Rahul Dutta, S. Manzanera, Adrián Gambín-Regadera, E. Irles, E. Tajahuerce, J. Lancis, P. Artal   +6 more
semanticscholar   +1 more source

Fast adaptive optics scanning light ophthalmoscope retinal montaging

Biomedical Optics Express, 2018
The field of view of high-resolution ophthalmoscopes that require the use of adaptive optics (AO) wavefront correction is limited by the isoplanatic patch of the eye, which varies across individual eyes and with the portion of the pupil used for ...
Benjamin Davidson, A. Kalitzeos, J. Carroll, A. Dubra, S. Ourselin, M. Michaelides, Christos Bergeles   +6 more
semanticscholar   +1 more source

Attaining Comprehensive Diabetes Care in Ghana: Insights of Policymakers and Diabetes Experts

Current Medical Issues
Background: This study aimed to gather the perspectives of diabetes experts and policymakers to identify gaps, unmet needs, and recommendations for achieving comprehensive diabetes care in Ghana.
Ernest Yorke, Josephine Akpalu, Yacoba Atiase   +2 more
doaj   +1 more source

Ophthalmologists' practice patterns and challenges in achieving optimal management for glaucoma in Nigeria: results from a nationwide survey

BMJ Open, 2016
Purpose of the study Glaucoma, a chronic non-communicable disease, and leading cause of irreversible blindness worldwide is a public health problem in Nigeria, with a prevalence of 5.02% in people aged ≥40 years. The purpose of this nationwide survey was
F. Kyari, W. Nolan, C. Gilbert
semanticscholar   +1 more source

Ophthalmoscopic Notes.-On the Theory and Principles of the Ophthalmoscope [PDF]

Dublin Quarterly Journal of Medical Science
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openaire   +1 more source