Results 171 to 180 of about 10,505 (189)
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Current Developments in Lens Design and Optical Engineering XIX, 2018
The direct ophthalmoscope, a handheld device gives a highly magnified image of the retina. However, the sustainability of power source and cost are a limitation considering the usage demand. We compared a low-cost solar-powered Arclight ophthalmoscope with a standard ophthalmoscope Heine K180 in terms of ease of examination, usage, field of view, color
Vasudevan Lakshminarayanan +3 more
openaire +1 more source
The direct ophthalmoscope, a handheld device gives a highly magnified image of the retina. However, the sustainability of power source and cost are a limitation considering the usage demand. We compared a low-cost solar-powered Arclight ophthalmoscope with a standard ophthalmoscope Heine K180 in terms of ease of examination, usage, field of view, color
Vasudevan Lakshminarayanan +3 more
openaire +1 more source
Optometry and Vision Science, 2003
Ophthalmoscopic estimation of the vertical cup-to-disc ratio (VCDR) of the optic nerve head is important in the management of patients with glaucoma or who are glaucoma suspects. The purpose of this study was to compare the accuracy of estimation of VCDR obtained with direct ophthalmoscopy with that obtained with fundus biomicroscopy through undilated ...
Russell, Watkins +3 more
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Ophthalmoscopic estimation of the vertical cup-to-disc ratio (VCDR) of the optic nerve head is important in the management of patients with glaucoma or who are glaucoma suspects. The purpose of this study was to compare the accuracy of estimation of VCDR obtained with direct ophthalmoscopy with that obtained with fundus biomicroscopy through undilated ...
Russell, Watkins +3 more
openaire +2 more sources
Does the Eyesi direct ophthalmoscope increase interest in ophthalmology?
Acta OphthalmologicaPurpose: This study based on direct ophthalmoscopy (DO) teaching in medical curricula aimed to integrate both classic and simulator‐based DO techniques into the teaching of medical students.Methods: 110 medical students received a multiple‐choice questionnaire (four theory questions, six fundus photographs) prior to simulator‐based (EyeSi® Direct, Haag‐
Elias Flockerzi +7 more
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An Instant (In) Direct Ophthalmoscope
American Intra-Ocular Implant Society Journal, 1979openaire +2 more sources
Direct Cum Video Ophthalmoscopic System with Digital Image Processing Techniques
2021Nowadays the medical technology is growing very fast, demanding faster, efficient and economical improvement in medical techniques. This research paper presents a low cost, portable direct cum video ophthalmoscopic system which can work alone as well as with the video system.
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Pupillary Testing Using the Direct Ophthalmoscope
American Journal of Ophthalmology, 1988openaire +2 more sources