Understanding lens aging: the molecular basis of presbyopia. Ageing has major consequences in the deterioration of vision, notably, the inability to focus on near objects. The understanding gained through this study of age-related lens changes may allow us to prescribe drugs or diets that alter lens properties and thus delay the need for glasses. This would have great benefits not just in decreased inconvenience of users, but also in cost to the middle-aged and elderly. In addition, data will b ....Understanding lens aging: the molecular basis of presbyopia. Ageing has major consequences in the deterioration of vision, notably, the inability to focus on near objects. The understanding gained through this study of age-related lens changes may allow us to prescribe drugs or diets that alter lens properties and thus delay the need for glasses. This would have great benefits not just in decreased inconvenience of users, but also in cost to the middle-aged and elderly. In addition, data will be used to underpin the development of a flexible intraocular lens (IOL). Hard IOLs are routinely inserted into human eyes following cataract surgery. In the future, flexible IOLs based on the properties of young lenses will be used, rather than reading glasses. This new industry could be based in Australia.Read moreRead less
Identifying tear lipids, their deposition onto contact lenses and their role in the development of dry eye. Lipids provide a critical layer in the human tear film that retards evaporation and helps nourish and protect the eye. We will identify the molecules within this essential "oil slick" to better understand dry eye syndrome and the discomfort associated with wearing contact lenses. This may lead to new treatments for dry eye and novel technologies that provide greater comfort for the ~120,00 ....Identifying tear lipids, their deposition onto contact lenses and their role in the development of dry eye. Lipids provide a critical layer in the human tear film that retards evaporation and helps nourish and protect the eye. We will identify the molecules within this essential "oil slick" to better understand dry eye syndrome and the discomfort associated with wearing contact lenses. This may lead to new treatments for dry eye and novel technologies that provide greater comfort for the ~120,000 Australians who wear contact lenses. This collaborative research directly supports the mission of a respected non-profit organisation (Institute for Eye Research) and will train scientists in world-leading analytical technologies that are essential to Australia's emerging biotechnology industries.Read moreRead less
Special Research Initiatives - Grant ID: SR0354517
Funder
Australian Research Council
Funding Amount
$20,000.00
Summary
Adaptive Optics for Australian Astronomy, Medicine, Industry, and Defence. Adaptive optics is a technique for correcting wavefront distortions in light beams to improve optical imaging performance. The Research Network for Adaptive Optics aims to draw together isolated Australian and New Zealand research groups working on adaptive optics applications in disparate areas to achieve a critical mass of researchers in this burgeoning field. Adaptive optics has wide application in areas as diverse as ....Adaptive Optics for Australian Astronomy, Medicine, Industry, and Defence. Adaptive optics is a technique for correcting wavefront distortions in light beams to improve optical imaging performance. The Research Network for Adaptive Optics aims to draw together isolated Australian and New Zealand research groups working on adaptive optics applications in disparate areas to achieve a critical mass of researchers in this burgeoning field. Adaptive optics has wide application in areas as diverse as astronomy, vision science, ophthalmology, microscopy, optical communications, laser radar, and laser beam shaping. The Research Network will coordinate and expand Australian involvement in these areas and inform industry, as have similar networks in the USA and Europe.Read moreRead less
Investigation of the structure of the pre-ocular tear film. Eye care is critical to the elderly e.g. over 50% can expect to suffer from dry-eye which inhibits productivity and independence. Eye-drops are often used for treatment and development of drops will improve the well-being and productivity of the elderly. Formulation of eye-drops is complex because they must be comfortable, easy to use, and preserve the active agent. Better formulations will benefit people both medically and financially. ....Investigation of the structure of the pre-ocular tear film. Eye care is critical to the elderly e.g. over 50% can expect to suffer from dry-eye which inhibits productivity and independence. Eye-drops are often used for treatment and development of drops will improve the well-being and productivity of the elderly. Formulation of eye-drops is complex because they must be comfortable, easy to use, and preserve the active agent. Better formulations will benefit people both medically and financially. It will lead to more compliance, and thus maintain the independence of and productivity of older people. This will increase the market share and the financial gains will be fed back to the community. This project will also train scientists in industrial production and marketing.Read moreRead less
Relationship of retinal directionality to human retinal anatomy variations. This project aims to improve measurement of retinal directionality, which is the reduction in brightness when a light beam’s entry into the human eye is shifted from the centre to the edge of the pupil. This influences retinal image quality and can be used to measure changes in shape of the peripheral eye. This project will apply advanced technologies in holography, and heads-up displays to explore how retinal directiona ....Relationship of retinal directionality to human retinal anatomy variations. This project aims to improve measurement of retinal directionality, which is the reduction in brightness when a light beam’s entry into the human eye is shifted from the centre to the edge of the pupil. This influences retinal image quality and can be used to measure changes in shape of the peripheral eye. This project will apply advanced technologies in holography, and heads-up displays to explore how retinal directionality changes during accommodation (focusing). The expected outcome is improved understanding of retinal stretching changes during focusing. The benefit is that the project will lead to advancements in retinal imaging.Read moreRead less
Removing the blinkers: a wider study of the human eye. Peripheral aberrations, wide-field retinal imaging and optical parameters. This project will study peripheral (side vision) optics of the human eye and its role in the limits of visual performance. This will improve ocular measurements and contribute towards improved diagnosis and treatment of ocular diseases and short-sightedness.
Advanced methods for intraocular imaging. The ability to image the retina of the human eye at high resolution is fundamental to improving understanding of ocular physiology, ocular optics and disease diagnosis. This project applies the relatively new application of active optics to vision science. This project will investigate the advantages of using new beam shaping techniques for characterising the optics of the eye, improving retinal imagery and improving fixation stability. This project will ....Advanced methods for intraocular imaging. The ability to image the retina of the human eye at high resolution is fundamental to improving understanding of ocular physiology, ocular optics and disease diagnosis. This project applies the relatively new application of active optics to vision science. This project will investigate the advantages of using new beam shaping techniques for characterising the optics of the eye, improving retinal imagery and improving fixation stability. This project will achieve three-dimensional holography of human eyes and develop holography plates for correcting the aberrations of eyes. Expected outcomes are not-before experienced resolution images of the retina and better understanding of the optical characteristics of the refractive surfaces and media in the eye.Read moreRead less
Lipidomics of vision. Presbyopia and cataract are the major causes of visual impairment worldwide. Nevertheless, our understanding of lens ageing at both a cellular and molecular level is limited. This project will gain new insight into the effect of age on lens membrane lipids and their role in the development of presbyopia and cataract.
Do sex steroids regulate tear lipid production in human meibomian glands? This project aims to determine whether production of tear film lipids by meibomian gland cells is regulated by sex steroids. The tear film is essential to eyesight. It protects and nourishes the eye surface to maintain transparency to enable light to reach the retina. To guarantee these functions, exquisite control of tear film composition is required, including the outer lipid layer. Sex hormones, including oestrogen, may ....Do sex steroids regulate tear lipid production in human meibomian glands? This project aims to determine whether production of tear film lipids by meibomian gland cells is regulated by sex steroids. The tear film is essential to eyesight. It protects and nourishes the eye surface to maintain transparency to enable light to reach the retina. To guarantee these functions, exquisite control of tear film composition is required, including the outer lipid layer. Sex hormones, including oestrogen, may control production of the lipid layer by meibomian glands in the eyelid, but this has not been confirmed in humans. This project aims to show whether meibomian glands produce sex hormones, which then control production of tear lipids. This new knowledge will improve our understanding of how the tear film maintains clear vision.Read moreRead less
Examination of unique tear lipids and their role in the tear film's structure and function. The tear film lipid layer covers the eye, stabilises the tears and prevents their evaporation. Yet its structure, function and composition are yet to be fully elucidated. The aim of this project is to fully characterise the unique lipids in this layer, the long-chain omega-hydroxy fatty acids (not found elsewhere in the body), and to determine their role in its structure and function. The project is signi ....Examination of unique tear lipids and their role in the tear film's structure and function. The tear film lipid layer covers the eye, stabilises the tears and prevents their evaporation. Yet its structure, function and composition are yet to be fully elucidated. The aim of this project is to fully characterise the unique lipids in this layer, the long-chain omega-hydroxy fatty acids (not found elsewhere in the body), and to determine their role in its structure and function. The project is significant because the unique combination of skills including synthetic chemistry, mass spectrometry, lipidomics, biochemistry, biophysics which aim to result in a major shift in the understanding of this layer.Read moreRead less