ES8304421A1 - Systems for the study and computation of visual fields - Google Patents

Systems for the study and computation of visual fields

Info

Publication number
ES8304421A1
ES8304421A1 ES508151A ES508151A ES8304421A1 ES 8304421 A1 ES8304421 A1 ES 8304421A1 ES 508151 A ES508151 A ES 508151A ES 508151 A ES508151 A ES 508151A ES 8304421 A1 ES8304421 A1 ES 8304421A1
Authority
ES
Spain
Prior art keywords
brightness
background
study
eprom
microprocessor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES508151A
Other languages
Spanish (es)
Other versions
ES508151A0 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mel S A
Original Assignee
Mel S A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mel S A filed Critical Mel S A
Priority to ES508151A priority Critical patent/ES8304421A1/en
Priority to BE0/209754A priority patent/BE895379A/en
Priority to GB08235963A priority patent/GB2114406B/en
Priority to IT24843/82A priority patent/IT1155010B/en
Priority to NL8204887A priority patent/NL8204887A/en
Priority to DE19823246854 priority patent/DE3246854A1/en
Priority to MX82101664U priority patent/MX6951E/en
Priority to CA000418099A priority patent/CA1211213A/en
Priority to FR8221290A priority patent/FR2518782B1/en
Publication of ES508151A0 publication Critical patent/ES508151A0/en
Publication of ES8304421A1 publication Critical patent/ES8304421A1/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
    • A61B3/024—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for determining the visual field, e.g. perimeter types
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H10/00—ICT specially adapted for the handling or processing of patient-related medical or healthcare data
    • G16H10/20—ICT specially adapted for the handling or processing of patient-related medical or healthcare data for electronic clinical trials or questionnaires
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
    • G16H40/40—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the management of medical equipment or devices, e.g. scheduling maintenance or upgrades
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Business, Economics & Management (AREA)
  • Epidemiology (AREA)
  • Business, Economics & Management (AREA)
  • Primary Health Care (AREA)
  • Animal Behavior & Ethology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Physics & Mathematics (AREA)
  • Image Processing (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

Abstract

To study and measure visual fields, a CRT displays to a patient fixation points anywhere in the field and a test stimulus movable and with brightness adjustable over 10000:1 background brightness also adjustable. Characters and graphics can also be displayed. A second CRT is provided as the practitioner's monitor. Main components of the central processor controlling the display are microprocessor (1), RAM (2) and EPROM (3) holding program, instruction decoder (4) and buffers (5, 6). Other components not shown are 9 video generator including character patterns stored in an EPROM, character memory and a clock locked to the one in the microprocessor (1) a video mixer including fixation point generator and D/A converters passing signals for setting the brightness of the best stimulus and background and a video output amplifier combining the test stimulus, fixation point and background signals together with facilities for erasure.
ES508151A 1981-12-18 1981-12-18 Systems for the study and computation of visual fields Expired ES8304421A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
ES508151A ES8304421A1 (en) 1981-12-18 1981-12-18 Systems for the study and computation of visual fields
BE0/209754A BE895379A (en) 1981-12-18 1982-12-16 VISUAL FIELD STUDY AND CALCULATION SYSTEM
GB08235963A GB2114406B (en) 1981-12-18 1982-12-17 Systems for the study and computation of visual fields
IT24843/82A IT1155010B (en) 1981-12-18 1982-12-17 COMPUTERIZED SYSTEM FOR THE STUDY AND CALCULATION OF THE VISUAL FIELD
NL8204887A NL8204887A (en) 1981-12-18 1982-12-17 SYSTEM FOR EXAMINING AND CALCULATING THE FIELD OF VISION.
DE19823246854 DE3246854A1 (en) 1981-12-18 1982-12-17 FACE FIELD EXPLORATION AND CALCULATION SYSTEM
MX82101664U MX6951E (en) 1981-12-18 1982-12-17 IMPROVEMENTS IN THE SYSTEM FOR THE STUDY AND CALCULATION OF THE VISUAL FIELD
CA000418099A CA1211213A (en) 1981-12-18 1982-12-20 System for study and calculation of visual field
FR8221290A FR2518782B1 (en) 1981-12-18 1982-12-20 VISUAL FIELD STUDY AND CALCULATION DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES508151A ES8304421A1 (en) 1981-12-18 1981-12-18 Systems for the study and computation of visual fields

Publications (2)

Publication Number Publication Date
ES508151A0 ES508151A0 (en) 1983-03-16
ES8304421A1 true ES8304421A1 (en) 1983-03-16

Family

ID=8483381

Family Applications (1)

Application Number Title Priority Date Filing Date
ES508151A Expired ES8304421A1 (en) 1981-12-18 1981-12-18 Systems for the study and computation of visual fields

Country Status (8)

Country Link
BE (1) BE895379A (en)
CA (1) CA1211213A (en)
DE (1) DE3246854A1 (en)
ES (1) ES8304421A1 (en)
FR (1) FR2518782B1 (en)
GB (1) GB2114406B (en)
IT (1) IT1155010B (en)
NL (1) NL8204887A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3434319A1 (en) * 1984-09-19 1986-04-03 Oculus-Optikgeräte GmbH, 6330 Wetzlar METHOD FOR FIXATION CONTROL OF THE PATIENT EYE IN PERIMETER MEASUREMENTS
IE67565B1 (en) * 1988-09-21 1996-04-17 Optometrics Limited Apparatus for testing dark adaptation
DE3922471A1 (en) * 1988-10-08 1991-01-17 Rodenstock Instr FACE FIELD TEST DEVICE
GR1000408B (en) * 1990-09-18 1992-06-30 Anastasios Mpezerianos Digital pattern generator programmable by microprocessor
DE4326760C2 (en) * 1993-08-10 1996-09-12 Johannes Braeuning Device for testing central visual functions
US5550602A (en) * 1994-11-09 1996-08-27 Johannes Braeuning Apparatus and method for examining visual functions

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3883234A (en) * 1970-07-13 1975-05-13 John R Lynn Computer controlled apparatus for automatic visual field examination
GB1384229A (en) * 1970-11-09 1975-02-19 Chaplin G B B Marlowe S Opthalmic field of view tester
US4239351A (en) * 1978-09-26 1980-12-16 Baylor College Of Medicine Apparatus for generating and displaying visual acuity targets
US4255022A (en) * 1978-10-02 1981-03-10 Baylor College Of Medicine Method of and apparatus for examination of visual fields

Also Published As

Publication number Publication date
IT8224843A1 (en) 1984-06-17
GB2114406A (en) 1983-08-17
CA1211213A (en) 1986-09-09
GB2114406B (en) 1985-12-11
NL8204887A (en) 1983-07-18
FR2518782A1 (en) 1983-06-24
ES508151A0 (en) 1983-03-16
FR2518782B1 (en) 1988-09-09
IT8224843A0 (en) 1982-12-17
DE3246854A1 (en) 1983-07-21
IT1155010B (en) 1987-01-21
BE895379A (en) 1983-04-15

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970612