Development Of A High Acuity, Diamond Retinal Prosthesis
Funder
National Health and Medical Research Council
Funding Amount
$1,010,214.00
Summary
Over recent years our team has developed a retinal implant to restore sight to people with certain types of blindness. With 256 independently controllable electrodes this device is among the most sophisticated in the world. We aim to conduct experiments to demonstrate that our device can provide improved better visual acuity than the world leaders with a view to developing a competitive commercial medical technology.
The Functional Organisation And Signals Of Motion Sensitive Neurons In The Middle-temporal Area Of Visual Cortex
Funder
National Health and Medical Research Council
Funding Amount
$405,337.00
Summary
Some nerve cells in the cerebral cortex are very sensitive to visual motion. These neurons direct eye movements and provide motion perception, but the "neuronal code" they carry is poorly understood. We will address this basic question in experimental studies of the primate visual system. This project will help us understand visual performance; poor motion vision is an early indicator of many neurological disorders and this knowledge can help develop methods for their detection and diagnosis.
Novel Ophthalmic Topical Formulation Targeting Molecular Pathogenesis Of Corneal Haze
Funder
National Health and Medical Research Council
Funding Amount
$296,090.00
Summary
Presently, no drugs are proven to cure corneal haze/scarring, major leading cause of global blindness. Haze is caused by eye trauma, infections or refractive laser surgeries. We aim to test a non toxic, novel ophthalmic topical formulation developed to act on molecular and cellular targets of haze formation. The successful completion of the study will determine formulation’s optimal dose, safety and efficacy for its future potential clinical use in reversing corneal scarring/haze without side ef ....Presently, no drugs are proven to cure corneal haze/scarring, major leading cause of global blindness. Haze is caused by eye trauma, infections or refractive laser surgeries. We aim to test a non toxic, novel ophthalmic topical formulation developed to act on molecular and cellular targets of haze formation. The successful completion of the study will determine formulation’s optimal dose, safety and efficacy for its future potential clinical use in reversing corneal scarring/haze without side effects.Read moreRead less
THE ROLE OF MONOCYTIC LINEAGE CELLS IN MODELS OF CORNEAL DISEASE
Funder
National Health and Medical Research Council
Funding Amount
$311,567.00
Summary
Vision relies on sharp, focused undistorted images passing through the cornea, the clear 'window' at the front of the eye. Corneal disease causes over 5 million cases of blindness worldwide. In patients who damage the delicate covering of the cornea, due to trauma or contact lens wear, there is an increased risk of infection that may lead to blindness. This project will study the ways in which immune cells in the cornea detect invasion by potential pathogens.
Neural Mechanisms That Limit The Visual Sensitivity Of Primates
Funder
National Health and Medical Research Council
Funding Amount
$379,400.00
Summary
This project concerns the way nerve cells in the brain enable the detection and perception of objects in the visual world. It is thought that nerve cells early in the visual pathway signal the presence or absence of light in a small part of the visual field, but the nature of the neuronal code carried by these pathways remains poorly understood. The aim of our project is to address this basic question, in experimental studies of the intact primate visual system. We will conduct two sets of exper ....This project concerns the way nerve cells in the brain enable the detection and perception of objects in the visual world. It is thought that nerve cells early in the visual pathway signal the presence or absence of light in a small part of the visual field, but the nature of the neuronal code carried by these pathways remains poorly understood. The aim of our project is to address this basic question, in experimental studies of the intact primate visual system. We will conduct two sets of experiments. Firstly, we will test the hypothesis that nerve cells in the early visual system are sensitive to only a small part of the visual field. We will determine whether the signals of pre-cortical nerve cells are dependant on spatial context. Secondly we wll study the signals of several nerve cells simultaneously using multiple electrodes. We will determine if the signals of many nerve cells are required to detect small visual stimuli like those used in perimetry. These experiments address basic questions, but have application to human vision and visual dysfunction. Good acuity is essential for everyday tasks such as reading, and defects in visual sensitivity are used for early detection of neurological dysfunction in diseases such as glaucoma and macular degeneration. Understanding the properties of neurons which underlie visual perception can thus help us to understand normal visual performance, and how this changes in partial sight. This can help develop better methods for detection and treatments for such disorders.Read moreRead less
Development And Evaluation Of Teleophthalmic Systems For Screening Of Common Blinding Eye Diseases
Funder
National Health and Medical Research Council
Funding Amount
$263,918.00
Summary
Portable ophthalmic instruments will provide digital images for storage and telemetric transmission to a disease control centre. We will be assessing and developing new portable ophthalmic imaging instruments, and validating them for common blinding eye conditions. The aim is to assess the ability of various health personal to document glaucoma, diabetic retinopathy, active trachoma, corneal scarring and cataract in rural screenings using digital imaging technology. A network of ophthalmologists ....Portable ophthalmic instruments will provide digital images for storage and telemetric transmission to a disease control centre. We will be assessing and developing new portable ophthalmic imaging instruments, and validating them for common blinding eye conditions. The aim is to assess the ability of various health personal to document glaucoma, diabetic retinopathy, active trachoma, corneal scarring and cataract in rural screenings using digital imaging technology. A network of ophthalmologists, health department personnel and aboriginal health workers in Western Australia will be involved. The project will also examine the quality of images obtained by health workers with various levels of skills and compare this with conventional photographs currently obtained by the screening network. Finally, the project will demonstrate practicality of the large scale storage of digital images of patient eyes. Preliminary evaluations have been performed on our teleophthalmology system using different portable instruments namely a handheld fundus camera, slit-lamp and indirect ophthalmoscope. We have also tested our teleophthalmology system at the Dr. Soetomo Hospital (Airlangga University) in Surabaya, Indonesia. Images captured using the handheld fundus camera were successfully transmitted to Lions Eye Institute through satellite, mobile and Internet lines. This pilot project has been sponsored by the Western Australian Department of Trade and Commerce and Telstra.Read moreRead less
A ROBOTIC MICRO DRAINAGE SURGERY FOR GLAUCOMA (A BIOLOGICAL MICROFISTULA AND IMPLANTATION METHOD AND APPARATUS)
Funder
National Health and Medical Research Council
Funding Amount
$441,020.00
Summary
Glaucoma is a major cause of blindness in our community. We are developing a new surgical procedure to treat glaucoma. The technique is based on the implantation of a tiny drainage tube inside the eye. This allows the eye's natural fluid to escape at the required rate. Insufficient drainage, or over production of fluid in the eye's of glaucoma patients is responsible for the high pressures inside the eye that characterise this disease. A simple, safe, and reliable surgical procedure to lower int ....Glaucoma is a major cause of blindness in our community. We are developing a new surgical procedure to treat glaucoma. The technique is based on the implantation of a tiny drainage tube inside the eye. This allows the eye's natural fluid to escape at the required rate. Insufficient drainage, or over production of fluid in the eye's of glaucoma patients is responsible for the high pressures inside the eye that characterise this disease. A simple, safe, and reliable surgical procedure to lower intraocular pressure would be a major benefit to the almost 67 million glaucoma patients worldwide, and would relieve the current need for lifelong medication.Read moreRead less