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Technology for sensory impairments (vision and hearing)
Published in Alex Mihailidis, Roger Smith, Rehabilitation Engineering, 2023
J. A. Brabyn, H. Levitt, J.A. Miele
Patients with significantly reduced vision that cannot be corrected by glasses, contacts, surgery, or medical treatments should be referred to a low vision specialist, who is normally an optometrist or ophthalmologist with special expertise and resources to assess and help make the best use of the remaining vision. Low vision clinics may also include low vision therapists, teachers, or occupational therapists trained in low vision rehabilitation, who work with the client on training and using assistive technology.
Introduction to Image Formation by the Optical Microscope
Published in Bethe A. Scalettar, James R. Abney, Cyan Cowap, Introductory Biomedical Imaging, 2022
Bethe A. Scalettar, James R. Abney, Cyan Cowap
[Vision Correction – Nearsightedness] Assume that a nearsighted patient has a far point of 300 cm. To correct the patient's vision, an optometrist designs glasses that, when placed 2 cm from the eye, create an image of an object at infinity at the far point, so that the object can be seen. What are the appropriate focal length and power for the glasses? Hint: The glasses create a virtual image of objects at infinity at the far point, so the relaxed eye can focus on distant objects.
The changing scope of Optometry in New Zealand: historical perspectives, current practice and research advances
Published in Journal of the Royal Society of New Zealand, 2019
Joanna M. Black, Robert J. Jacobs, John R. Phillips, Monica L. Acosta
The scope of practice of the Optometry profession worldwide has continually evolved over the past centuries. Different disciplines have contributed to the development of Optometry’s role in primary eye care, so that today Optometrists diagnose, manage and treat a range of eye diseases and visual disorders, in addition to prescribing optical appliances such as spectacles and contact lenses. Some more details of the evolution of the profession in New Zealand can be found in the book by W. G. Kett (1951), ‘History of Optometry in New Zealand’. In the early nineteenth century, dispensing glasses was a job of watchmakers and jewellers, until the establishment in the South Island of the first opticians, who had been accredited in England. By 1902, there were several optical practitioners in New Zealand (Kett 1951) and since then, the name of the profession has changed to Optometry and the scope of practice has expanded. The first major expansion came with the ability to use diagnostic drugs (local anaesthetics, mydriatics and cycloplegics) and with it, increased responsibility for accurate and complete diagnoses. The ability to manage certain conditions with therapeutic pharmaceutical agents was the second major expansion of scope.