Robert Dister

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Our modern rectilinear visual environment contains visual stimuli for which evolution has not had time to optimally shape visual processing. One such stimulus, periodic stripes, is known to lead to visual depth ambiguity. In this paper we show that postural instability, as measured by the variance of fore and aft sway, is increased by viewing such stimuli.(More)
Snellen visual acuity was measured in 106 patients ranging in age from 20 to 88 years in routine examinations in the general refraction clinic with two kinds of charts: the standard chart using black letters on a white background and a reversed-contrast display featuring white letters on a black background. The overall ratio of the white-on-black to the(More)
The U.S. Food and Drug Administration (FDA) recently sent contact lens practitioners a letter advising them that the FDA had asked manufacturers to indicate a maximum recommended wearing time of 7 days for cosmetic extended wear soft contact lenses. This paper discusses the authority of the FDA and the legal consequences of the FDA's "7-day Letter."(More)
Professional liability claims against military optometrists must be brought in federal court under the Federal Tort Claims Act, which establishes rules of procedure that are somewhat different from those found in malpractice claims against private sector optometrists. Despite these differences, cases litigated against military optometrists may potentially(More)
Because of the risk of complication posed by extended-wear lenses, contact lens practitioners must comply with the requirements of informed consent, which obligate the optometrist to communicate these risks to patients. Documentation of informed consent can be obtained by using printed agreements that describe the risks of wear, instructions for lens care,(More)
Today, most computerized optometric records contain the financial and business data for a practice. As technology advances in both optometric instrumentation and computerization, data for the optometric examination is also becoming part of the computerized recordkeeping system. This paper discusses legal aspects of computerized optometric examination(More)
The legal doctrine of informed consent mandates that the doctor provide sufficient information so a patient can refuse or consent to an optometric procedure in a knowledgeable, intelligent manner. Informed consent is especially important in contact lens practice. The informed consent procedures presented here are simple and straightforward. They should be a(More)
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