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Computer Analyzer for Field of Vision

Computer Analyzer for Field of Vision. Giorgi Gigilashvili , PhD student at Deparment of Biomedical Engineering, Georgian Technical University Supervisor: Prof. Zviad Gurtskaya. Presented at 6th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia. History.

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Computer Analyzer for Field of Vision

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  1. Computer Analyzer for Field of Vision GiorgiGigilashvili, PhD student at Deparment of Biomedical Engineering, Georgian Technical University Supervisor: Prof. ZviadGurtskaya Presented at 6th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia

  2. History Presented at 6th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia 1945 – First perimeter system designed by Goldmann 1970 – Octopus perimeter was first introduced 1982 – Humphrey field analyzer displayed at AAO 1983 – First clinical trials showed by Michael Patella 1984 – Became popular in clinical environment

  3. Perimetry Presented at 6th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia Perimetry is the measurement of visual functions of the eye at topographically defined centers in the visual field

  4. Uses of Perimetry Presented at 6th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia Glaucomatous field defects Chorioretinal lesions Optic disc lesions Optic nerve lesions Neuro-ophtalmic lesions

  5. Techniques of Visual Field Analysis Presented at 6th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia Visual field can be charted by using kinetic and/or static techniques with instruments that are operated either manually or automatically (computerized)

  6. Kinetic Perimetry Presented at 6th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia Kinetic Perimetry (Manual) Stimulus is moved from a non-seeing area to seeing area to the point at which it is firstly observed by the patient in relation to fixation point. The operator selects the stimulus (target), size and intensity, moves the target from periphery close to central area of eyesight, monitors patient eye fixation.

  7. Static Perimetry Presented at 6th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia Static Perimeter Computerized Static technique involves the presentation of static test objects Static method represents an “on – off” technique during which each stimuli is presented to the patient for the duration of 0.5-1 second and the points (targets) which patient failed to detect are recorded.

  8. Parameters of Perimetry Presented at 6th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia Instrument Variables: Stimulus size Stimulus duration Background Luminance

  9. Kinetic VS Static Perimetry Presented at 6th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia

  10. Computed Perimetry System for Visual Field Testing Presented at 6th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia

  11. Computed Perimetry System for Visual Field Testing Presented at 6-th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia Hemisphere Control module for stimuli presentation Diagnostic module Patient gaze fixation control module

  12. Computed Perimetry System for Visual Field Testing Electric scheme of connections of light-emitting diodes Presented at 6-th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia

  13. Computed Perimetry System for Visual Field Testing Main Switching Board with Microcontroller PIC16 F887 Presented at 6-th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia

  14. Computed Perimetry System for Visual Field Testing Basic Scheme of Switching Device Presented at 6-th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia

  15. Computed Perimetry System for Visual Field Testing Microcontroller PIC16 F88 Specifications Presented at 6-th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia

  16. Computed Perimetry System for Visual Field Testing Presented at 6th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia Eye Pupil Movement Controlling Module (Gaze fixation monitoring module) Monitoring and control of eye pupil movement is performed by built in video camera Coordinates of eye pupil location during the start of examination are stored in the database During the examination process eye pupil location is constantly compared to stored data to discern eye movement Fixation is also tested by mapping of the blind spot

  17. Computed Perimetry System for Visual Field Testing Eye Pupil Movement Controlling Module

  18. Current and Future Plans Presented at 6th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia Modification and upgrade of current computed perimetry system Integrated PC Integrated touch screen monitor

  19. Current and Future Plans Presented at 6th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia Mini PC x86 L-20Y D525

  20. Current and Future Plans Presented at 6th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia Mini PC Specifications:

  21. Current and Future Plans Presented at 6th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia 10 inch touch screen monitor

  22. Current and Future Plans Presented at 6th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia Mini PC Specifications:

  23. Computed Perimetry System for Visual Field Testing Presented at 6th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia Advantages of Computed Perimetry System for Visual Field Testing The data is quantifiable, reproducible and amenable for statistical manipulation An automated technology reduces the need for highly trained technicians/operators Elimination of outcomes of possible subjectivity of perimetrist and/or patient Automated perimetry is more accurate and informative

  24. Computed Perimetry System for Visual Field Testing International Education Fair, Tbilisi 2014 Independence Day, Tbilisi 2014 Presented at 6th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia

  25. Computed Perimetry System for Visual Field Testing THANKS Presented at 6th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia

  26. Computed Perimetry System for Visual Field Testing Questions and Discussion Presented at 6th Georgian-German School and Workshop in Basic Science, July 2014, Tbilisi, Georgia

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