Show Advanced Search

REFINE YOUR SEARCH:

Containing Text
- - -
+
Filter by author or institution
GO
Filter by publication date
From:
October, 2006
Until:
Today
Filter by journal section

Filter by science education

 
 
Macular Degeneration: Degenerative changes in the Retina usually of older adults which results in a loss of vision in the center of the visual field (the Macula lutea) because of damage to the retina. It occurs in dry and wet forms.

Regenerative Therapy by Suprachoroidal Cell Autograft in Dry Age-related Macular Degeneration: Preliminary In Vivo Report

1Low Vision Research Centre of Milan, 2Department of Ophthalmology, A. Fiorini Hospital, Sapienza University of Rome, 3Glaucoma and Low Vision Study Center, Department of General Surgery and Organ Transplants, University of Bologna, 4Department of Sense Organs, Faculty of Medicine and Odontology, Sapienza University of Rome

JoVE 56469


 Medicine

Using Retinal Imaging to Study Dementia

1Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, 2Department of Medicine & Therapeutics, The Chinese University of Hong Kong, 3Therese Pei Fong Chow Research Centre for Prevention of Dementia, The Chinese University of Hong Kong, 4Gerald Choa Neuroscience Centre, The Chinese University of Hong Kong, 5Memory Aging and Cognition Centre, National University Health System, 6Department of Pharmacology, National University of Singapore, 7Singapore Eye Research Institute, Singapore National Eye Centre, 8Duke-NUS Medical School, National University of Singapore

JoVE 56137


 Medicine

Engineering Transplantation-suitable Retinal Pigment Epithelium Tissue Derived from Human Embryonic Stem Cells

1U861, I-Stem, Association Française contre les Myopathies (AFM), Institut National de la Santé et de la Recherche Médicale (INSERM), 2U861, I-Stem, Association Française contre les Myopathies (AFM), Université Evry Val-d'Essonne (UEVE), 3I-Stem, Association Française contre les Myopathies (AFM), Centre pour L’Etude des Cellules Souches (CECS), 4Banque de tissus humain, Hôpital Saint Louis, Assistance Publique - Hôpitaux de Paris (AP-HP), 5Sorbonne Université, INSERM, CNRS, Institut de la Vision, F-75012

JoVE 58216


 Developmental Biology

Use of Rabbit Eyes in Pharmacokinetic Studies of Intraocular Drugs

1Department of Ophthalmology, Seoul National University Bundang Hospital, 2Department of Ophthalmology, College of Medicine, Seoul National University, 3Department of Ophthalmology, Hanyang University Hospital, 4Department of Ophthalmology, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, 5Department of Clinical Pharmacology, Seoul National University Hospital, 6Department of Clinical Pharmacology, Seoul National University Bundang Hospital

JoVE 53878


 Medicine

A Step by Step Protocol for Subretinal Surgery in Rabbits

1Department of Ophthalmology, University of Bonn, 2Department of Ophthalmology, National University of Singapore, 3Geuder AG, 4Department of Ophthalmology, University of Münster, 5Section on Epithelial and Retinal Physiology and Disease, National Eye Institute/National Institutes of Health, 6Surgical Retina Department, Singapore National Eye Centre

JoVE 53927


 Medicine

Dissection of Human Retina and RPE-Choroid for Proteomic Analysis

1Barbara & Donald Jonas Stem Cell Laboratory, and Bernard & Shirlee Brown Glaucoma Laboratory, Department of Pathology & Cell Biology, Institute of Human Nutrition, College of Physicians and Surgeons, Columbia University, 2Edward S. Harkness Eye Institute, New York-Presbyterian Hospital, 3Omics Laboratory, Byers Eye Institute, Department of Ophthalmology, Stanford University, 4Medical Scientist Training Program, University of Iowa, 5Department of Pediatrics, University of Iowa, 6Department of Neurology, University of Iowa, 7Department of Ophthalmology, Federal University of Sao Paulo (UNIFESP), 8Department of Ophthalmology, Federal University of EspÍrito Santo (UFES), 9Palo Alto Veterans Administration, Palo Alto, CA

JoVE 56203


 Biochemistry

Using Optical Coherence Tomography and Optokinetic Response As Structural and Functional Visual System Readouts in Mice and Rats

1Department of Neurology, Heinrich-Heine-University Düsseldorf, 2Department of Cell Physiology, Faculty of Biology and Biotechnology, Ruhr-University Bochum, 3Division of Neuroinflammation and Glial Biology, Department of Neurology, University of California San Francisco

Video Coming Soon

JoVE 58571


 JoVE In-Press

Fluorescent Dye Labeling of Erythrocytes and Leukocytes for Studying the Flow Dynamics in Mouse Retinal Circulation

1National Healthcare Group Eye Institute, Tan Tock Seng Hospital, 2Singapore Eye Research Institute (SERI), Singapore National Eye Center, 3School of Material Science and Engineering, Nanyang Technological University, 4Department of Ophthalmology, Yong Loo Lin School of Medicine, National University Health Systems, National University of Singapore, 5Ophthalmology Academic Clinical Research Program, DUKE-NUS Graduate Medical School

JoVE 55495


 Medicine

Limbal Approach-Subretinal Injection of Viral Vectors for Gene Therapy in Mice Retinal Pigment Epithelium

1Department of Biomedical Sciences, Seoul National University College of Medicine, 2FARB Laboratory, Biomedical Research Institute, Seoul National University Hospital, 3College of Life Sciences, Gwangju Institute of Science and Technology, 4Department of Ophthalmology, Seoul National University College of Medicine

JoVE 53030


 Neuroscience

Crowding

JoVE 10280

Source: Laboratory of Jonathan Flombaum—Johns Hopkins University

Human vision depends on light-sensitive neurons that are arranged in the back of the eye on a tissue called the retina. The neurons, called the rods and cones because of their shapes, are not uniformly distributed on the retina. Instead, there is a region in the center of the retina called the macula where cones are densely packed, and especially so in a central sub-region of the macula called the fovea. Outside the fovea there are virtually no cones, and rod density decreases considerably with greater distance from the fovea. Figure 1 schematizes this arrangement. This kind of arrangement is also replicated in the visual cortex: Many more cells represent stimulation at the fovea compared to the periphery. Figure 1. Schematic depiction of the human eye and the distribution of light-sensitive receptor cells on the retina. The pupil is the opening in the front of the eye that allows light to enter. Light is then focused onto the retina, a neural tissue in the back of the eye that is made of rods and cones, light-sensitive cells. At the center of the retina is the macula, and in


 Sensation and Perception

Method for the Assessment of Effects of a Range of Wavelengths and Intensities of Red/near-infrared Light Therapy on Oxidative Stress In Vitro

1Experimental and Regenerative Neurosciences, School of Animal Biology, The University of Western Australia, 2School of Animal Biology and The Oceans Institute, The University of Western Australia, 3Experimental and Regenerative Neurosciences, School of Anatomy, Physiology and Human Biology, The University of Western Australia

JoVE 52221


 Biology

Subretinal Injection of Gene Therapy Vectors and Stem Cells in the Perinatal Mouse Eye

1Bernard and Shirlee Brown Glaucoma Laboratory, Department of Ophthalmology, Columbia University, 2Institute of Human Nutrition, College of Physicians & Surgeons, Columbia University, 3Omics Laboratory, University of Iowa, 4Department of Ophthalmology and Visual Sciences, University of Iowa

JoVE 4286


 Medicine

Slow-release Drug Delivery through Elvax 40W to the Rat Retina: Implications for the Treatment of Chronic Conditions

1Biotechnology and Applied Clinical Sciences Department, University of L'Aquila, 2ARC Centre of Excellence in Vision Science, 3John Curtin School of Medical Research, Australian National University, 4ANU Medical School, Australian National University

JoVE 51563


 Medicine

Vibratome Sectioning Mouse Retina to Prepare Photoreceptor Cultures

1Department of Genetics, UMR_S 968, Institut de la Vision, 2Department of Visual Information, UMR_S 968, Institut de la Vision, 3Exploratory Team, UMR_S 968, Institut de la Vision, 4Sorbonne Universités, Paris 06, UMR_S 968, Institut de la Vision, 5INSERM, U968, Institut de la Vision, 6CNRS, UMR_7210, Institut de la Vision

JoVE 51954


 Neuroscience

Ophthalmoscopic Examination

JoVE 10146

Source: Richard Glickman-Simon, MD, Assistant Professor, Department of Public Health and Community Medicine, Tufts University School of Medicine, MA

The simplest ophthalmoscopes consist of an aperture to look through, a diopter indicator, and a disc for selecting lenses. The ophthalmoscope is primarily used to examine the fundus, or the inner wall of the posterior eye, which consists of the choroid, retina, fovea, macula, optic disc, and retinal vessels (Figure 1). The spherical eyeball collects and focuses light on the neurosensory cells of the retina. Light is refracted as it passes sequentially through the cornea, the lens, and the vitreous body. The first landmark observed during the funduscopic exam is the optic disc, which is where the optic nerve and retinal vessels enter the back of the eye (Figure 2). The disc usually contains a central whitish physiologic cup where the vessels enter; it normally occupies less than half the diameter of the entire disc. Just lateral and slightly inferior is the fovea, a darkened circular area that demarcates the point of central vision. Around this is the macula. A blind spot approximately 15° temporal to the line of gaze results from a lack of photoreceptor cells at the optic disc.

Fundus Photography as a Convenient Tool to Study Microvascular Responses to Cardiovascular Disease Risk Factors in Epidemiological Studies

1Environmental Risk and Health, Flemish Institute for Technological Research (VITO), 2Centre for Environmental Sciences, Hasselt University, 3Transportation Research Institute, Hasselt University, 4Department of Public Health, Occupational and Environmental Medicine, Leuven University

JoVE 51904


 Medicine

12
More Results...