Apparatus and method for determining intraocular pressure and corneal thickness
First Claim
1. An apparatus for producing an accurate value of intraocular pressure of an eye, said apparatus comprising:
- an intraocular pressure measuring device, said intraocular pressure measuring device providing a first intraocular pressure measurement of an eye;
a device for making a selected one of a corneal thickness measurement and at least one additional intraocular pressure measurement, separate and distinct from said first intraocular pressure measurement; and
a data analysis module that interrelates said first intraocular pressure measurement and said selected one of said corneal thickness measurement and said at least one additional intraocular pressure measurement;
whereby an accurate value of intraocular pressure is provided.
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Accused Products
Abstract
The invention includes methods and apparatus for measuring (Intraocular Pressure) IOP and (Corneal Thickness) CT for diagnosis and for monitoring a condition of health of an eye. The apparatus uses measurements selected from at least one of IOP and a CT, and a plurality of IOP measurements to deduce an interpretive result indicative of a condition of an eye. In another embodiment, the apparatus measures a relationship between an applanated area of variable size and a selected one of an applied force and an applied pressure. The relationship is used to deduce an interpretive result indicative of the condition of an eye. The result can be displayed to a practitioner. The practitioner uses the result to determine a course of treatment as necessary, and to monitor the effect of a course of treatment on the state of health of the eye over time.
45 Citations
41 Claims
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1. An apparatus for producing an accurate value of intraocular pressure of an eye, said apparatus comprising:
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an intraocular pressure measuring device, said intraocular pressure measuring device providing a first intraocular pressure measurement of an eye;
a device for making a selected one of a corneal thickness measurement and at least one additional intraocular pressure measurement, separate and distinct from said first intraocular pressure measurement; and
a data analysis module that interrelates said first intraocular pressure measurement and said selected one of said corneal thickness measurement and said at least one additional intraocular pressure measurement;
whereby an accurate value of intraocular pressure is provided. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of producing an accurate value of intraocular pressure of an eye, said method comprising the steps of:
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measuring a first intraocular pressure of an eye;
measuring a selected one of a corneal thickness of said eye and at least one additional intraocular pressure of said eye, separate and distinct from said first intraocular pressure;
interrelating said first intraocular pressure and said selected one of said corneal thickness and said at least one additional intraocular pressure; and
providing an accurate value of intraocular pressure. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. An apparatus for obtaining a relationship between a selected one of an applied force and an applied pressure, and a corresponding area of applanation of an eye, said apparatus comprising:
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a driver application section for applying to a surface of an eye a selected one of a variable force and a variable pressure to cause applanation of a portion of said surface of said eye; and
a measurement section measuring said selected one of a variable force and a variable pressure, and measuring a corresponding variable area of applanation of said surface of said eye;
whereby said apparatus obtains at least one point of a relationship between said area of applanation of said eye and said selected one of a variable force and a variable pressure. - View Dependent Claims (31, 32, 33, 34, 35)
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36. A method of obtaining a relationship between a selected one of an applied force and an applied pressure, and a corresponding area of applanation of an eye, said method comprising the steps of:
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applying to a surface of an eye a selected one of a variable force and a variable pressure to cause applanation of a portion of said surface of said eye;
measuring a variable area of applanation of said surface of said eye corresponding to said selected one of a variable force and a variable pressure; and
deducing at least one point of a relationship between said area of applanation of said eye and said selected one of a variable force and a variable pressure. - View Dependent Claims (37, 38, 39, 40, 41)
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Specification