Cases reported "Blindness"

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1/7. The diagnostic challenge of occult large vessel ischemia of the retina and choroid.

    Vascular occlusions of the retina and choroid can cause severe visual loss. These occlusions can occur as a result of systemic disease or after surgery. In most cases, the retinal appearance provides evidence of ischemia as the cause of visual loss. On occasion, however, clinical examination shows no objective signs of vascular occlusion, and this can lead the clinician to suspect optic nerve pathology as the cause of visual loss. This paper outlines some of the diagnostic criteria, clinical findings, and ancillary studies that can be used to differentiate between occult occlusion of the retina or choroid and optic nerve disease.
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2/7. Another choice for the blind.

    Automated peritoneal dialysis has proved to be an effective treatment for many patients. This presentation outlines the training issues and management of a 48-year-old registered blind, insulin dependent diabetic, who developed renal failure.
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3/7. Intraorbital implantation of a stimulating electrode for an optic nerve visual prosthesis. Case report.

    research into visual prosthetics is expected to revolutionize the treatment of blind patients with incurable outer retinal degenerative disease. Substantial evidence shows that useful visual sensations can be produced by controlled electrical stimulation of the optic nerve. To make the optic nerve visual prosthesis more acceptable, implantation techniques safer and less invasive than those previously used have been developed. A medial transconjunctival approach is now used to implant a stimulating electrode around the intraorbital section of the optic nerve. This new technique allows sufficient exposure of the nerve after detaching only one rectus muscle and performing a lateral canthotomy. Previously, an electrode was implanted in the intracranial part of the optic nerve, which required more invasive surgery. The new technique was first developed in cadavers and in patients undergoing eye enucleations. Finally, a 68-year-old blind man suffering from retinitis pigmentosa underwent long-term implantation. In this case report the authors describe the technique and outline some of the challenges involved.
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4/7. lighting a lamp for persons who are visually challenged.

    This paper is an outgrowth of an investigation to (1) identify persons with diabetes mellitus who manifest varying degrees of self-destructive behavior, (2) compile a list of dangerously negative self-management practices observed in the person who is visually challenged, (3) outline a comprehensive diabetes skills update designed to restore self-esteem, and (4) suggest to the rehabilitation worker and the diabetes educator ways to enhance instruction. The paper lists behaviors that may cause deadly harm to persons visually challenged by diabetes mellitus, requiring careful observation by the diabetes educator. A case report shows that numerous teaching opportunities arise from analyzing self-care skills that are lost due to vision pathology.
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5/7. The physically disabled dentist: 10 years' experience at the Kriser Institute.

    This article outlines the origins, development, and current status of the David B. Kriser Institute for the rehabilitation of Disabled dentists. During its first decade of existence this unique facility has provided retraining for more than 30 physically disabled dentists who have subsequently been able to resume dental practice. A case study highlights the Institute's mode of operation.
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6/7. The Charles Bonnet syndrome in perspective.

    The clinical condition occurring in the elderly with preserved intellectual functions, characterized by vivid, elaborate and dynamic recurrent visual pseudo-hallucinatory phenomena of a pleasant or neutral nature and often associated with ocular pathology - the Charles Bonnet syndrome - is described. Its main clinical features are illustrated and the aetiology discussed. Two new cases are presented and areas for future research are outlined.
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7/7. Improved productivity through purposeful use of additional template for a woman with cortical blindness.

    A single-subject study with an ABAB design investigated an adaptation of a work activity through the purposeful use of an additional template to improve productivity for a woman with cortical blindness resulting from anoxic brain damage. The activity required the subject to outline brackets (as parts of a handi-rack woodwork project) by tracing a template on a piece of pine board. During the baseline phase of the study, the subject used one template to outline the brackets. During the intervention phase, the subject used an additional template after receiving a brief training in its use. Productivity was measured by the number of potentially usable outlined brackets. Data analysis revealed that in the intervention phases, productivity improved significantly and accuracy increased. The application of tapping the subjects' intact sensory system was valuable for determining her vocational potential. The rationale of using an additional template to improve productivity was explained by the theory of affordance.
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