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公开(公告)号：CA2149051C
公开(公告)日：1998-12-08
申请号：CA2149051
申请日：1995-01-30
Applicant: LEICA INC
Inventor： GROLMAN BERNARD
Abstract: An improved tonometer (1) is disclosed having pachymetric means (44, 46, 48) for measuring a patient's corneal thickness to allow for correction of the intraocular pressure measurement where the corneal thickness measurement deviates from a calibration mean corneal thickness. In a preferred embodiment, a single light source (50) is pulsed just prior to intraocular pressure measurement to illuminate a central section, and a pair of lateral light detector arrays (34a, 34b) are arranged to obliquely image the corneal section and generate signals which may be processed by a CPU (48) to produce a corneal thickness measurement. If the corneal thickness measurement deviates from the calibration mean corneal thickness, the CPU calculates a thickness corrected intraocular pressure measurement. The intraocular pressure measurement, corneal thickness measurement, and/or corrected intraocular pressure measurement may then be reported by reporting means (64).
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公开(公告)号：ES2095774T3
公开(公告)日：1997-02-16
申请号：ES94919449
申请日：1994-06-13
Applicant: LEICA INC
Inventor： LUCE DAVID A , GROLMAN BERNARD
Abstract: A device for testing visual contrast sensitivity is disclosed whereby the contrast between a vectographically polarized test symbol and a reference background may be continuously varied by changing the direction of polarization of a polarization analyzer situated along the test axis. The invention is practiced by providing a chart projector or a conventional refractor with a rotatable analyzer.
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公开(公告)号：DE69401121T2
公开(公告)日：1997-06-26
申请号：DE69401121
申请日：1994-06-13
Applicant: LEICA INC
Inventor： LUCE DAVID , GROLMAN BERNARD
Abstract: A device for testing visual contrast sensitivity is disclosed whereby the contrast between a vectographically polarized test symbol and a reference background may be continuously varied by changing the direction of polarization of a polarization analyzer situated along the test axis. The invention is practiced by providing a chart projector or a conventional refractor with a rotatable analyzer.
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公开(公告)号：MX9503166A
公开(公告)日：1997-02-28
申请号：MX9503166
申请日：1995-01-30
Applicant: LEICA INC
Inventor： GROLMAN BERNARD
Abstract: Se describe un tonometro mejorado que tiene un medio paquimétrico para medir un espesor corneal o de la cornea de un paciente para permitir la correccion de la medicion de la presion intraocular, donde la medicion del espesor corneal se desvía de un espesor corneal promedio de calibracion. En una modalidad preferida, una fuente de luz individual emite impulsos justo antes de la medicion de la presion intraocular, para iluminar una seccion corneal central, y un par de arreglos detectores de luz, laterales, se arreglan para reflejar oblicuamente la seccion corneal y para generar señales que se pueden procesar por un CPU para producir una medicion del espesor corneal. si la medicion del espesor corneal se desvía del espesor corneal promedio de calibracion, la CPU calcula una medicion de la presion intraocular, corregida por el espesor. La medicion de la presion intraocular, la medicion del espesor corneal, y/o la medicion de la presion intraocular, corregida, luego se pueden reportar por un medio de reporte.
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公开(公告)号：DE69401121D1
公开(公告)日：1997-01-23
申请号：DE69401121
申请日：1994-06-13
Applicant: LEICA INC
Inventor： LUCE DAVID , GROLMAN BERNARD
Abstract: A device for testing visual contrast sensitivity is disclosed whereby the contrast between a vectographically polarized test symbol and a reference background may be continuously varied by changing the direction of polarization of a polarization analyzer situated along the test axis. The invention is practiced by providing a chart projector or a conventional refractor with a rotatable analyzer.
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Patent Agency Ranking
公开(公告)号：CA2131920C
公开(公告)日：1996-12-10
申请号：CA2131920
申请日：1994-06-13
Applicant: LEICA INC
Inventor： LUCE DAVID A , GROLMAN BERNARD
Abstract: A device for testing visual contrast sensitivity is disclosed whereby the contrast between a vectographically polarized test symbol (12, 22a) and a reference background (24) may be continuously varied by changing the direction of polarization (16') of a polarization analyzer (16) situated along the test axis (8'). The invention is practiced by providing a chart projector or a conventional refractor with a rotatable analyzer (16).
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公开(公告)号：AU1733995A
公开(公告)日：1995-08-15
申请号：AU1733995
申请日：1995-01-30
Applicant: LEICA INC
Inventor： GROLMAN BERNARD
Abstract: An improved tonometer is disclosed having a pachymetric device means for measuring a patient's corneal thickness to allow for correction of the intraocular pressure measurement where the corneal thickness measurement deviates from a calibration mean corneal thickness. In a preferred embodiment, a single light source is pulsed just prior to intraocular pressure measurement to illuminate a central corneal section, and a pair of lateral light detector arrays are arranged to obliquely image the corneal section and generate signals which may be processed by a CPU to produce a corneal thickness measurement. If the corneal thickness measurement deviates from the calibration mean corneal thickness, the CPU calculates a thickness-corrected intraocular pressure measurement. The intraocular pressure measurement, corneal thickness measurement, and/or corrected intraocular pressure measurement may then be reported by a suitable display.
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公开(公告)号：AU683142B2
公开(公告)日：1997-10-30
申请号：AU1733995
申请日：1995-01-30
Applicant: LEICA INC
Inventor： GROLMAN BERNARD
Abstract: An improved tonometer is disclosed having a pachymetric device means for measuring a patient's corneal thickness to allow for correction of the intraocular pressure measurement where the corneal thickness measurement deviates from a calibration mean corneal thickness. In a preferred embodiment, a single light source is pulsed just prior to intraocular pressure measurement to illuminate a central corneal section, and a pair of lateral light detector arrays are arranged to obliquely image the corneal section and generate signals which may be processed by a CPU to produce a corneal thickness measurement. If the corneal thickness measurement deviates from the calibration mean corneal thickness, the CPU calculates a thickness-corrected intraocular pressure measurement. The intraocular pressure measurement, corneal thickness measurement, and/or corrected intraocular pressure measurement may then be reported by a suitable display.
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公开(公告)号：CA2149051A1
公开(公告)日：1995-08-01
申请号：CA2149051
申请日：1995-01-30
Applicant: LEICA INC
Inventor： GROLMAN BERNARD
Abstract: An improved tonometer is disclosed having a pachymetric device means for measuring a patient's corneal thickness to allow for correction of the intraocular pressure measurement where the corneal thickness measurement deviates from a calibration mean corneal thickness. In a preferred embodiment, a single light source is pulsed just prior to intraocular pressure measurement to illuminate a central corneal section, and a pair of lateral light detector arrays are arranged to obliquely image the corneal section and generate signals which may be processed by a CPU to produce a corneal thickness measurement. If the corneal thickness measurement deviates from the calibration mean corneal thickness, the CPU calculates a thickness-corrected intraocular pressure measurement. The intraocular pressure measurement, corneal thickness measurement, and/or corrected intraocular pressure measurement may then be reported by a suitable display.
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公开(公告)号：CA2131920A1
公开(公告)日：1995-01-14
申请号：CA2131920
申请日：1994-06-13
Applicant: LEICA INC
Inventor： LUCE DAVID A , GROLMAN BERNARD
Abstract: A device for testing visual contrast sensitivity is disclosed whereby the contrast between a vectographically polarized test symbol and a reference background may be continuously varied by changing the direction of polarization of a polarization analyzer situated along the test axis. The invention is practiced by providing a chart projector or a conventional refractor with a rotatable analyzer.
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