Visual Field Test - Eye Chart Features

1) Visual field test
  • Automatic blind spot detection.
  • Camera to monitor the patient during the exam.
  • Eye tracking to set fixation point.
  • Patients database, appointments, exams thumbnails.
  • Checks fixation loss during exam and pauses the exam if fixation is lost.
  • Stimulus size: Goldmann size III
  • Exposure time: 200 ms
  • Strategies: Full Threshold 4-2, 4-2-1 / Fast Threshold 3 (fast) db steps visual field test.
  • Visual field tests: Glaucoma 30º / 76 points, 24º / 52 points
  • To increase efficiency starts with the measurement of eight 'anchor points' near the center of each quadrant.
  • The starting point for the surrounding points are calculated from the slope of the hill of vision, rather than restarting at the normal values for every location.
  • Re-tests are used to obtain an indication of response reproducibility using a set of fixed test locations
  • Variable stimulus rate, adapted to patient's response time.
  • Negative answers are checked twice (in case the patient blinked).
  • Statistics: Test points, false positive, false negative, fixation losses, short fluctuation, mean sensitivity.
  • Works with virtual reality glasses.
  • Cost effective.

2) Eye chart

  • Scales: Snellen / Monoyer
  • Charts: Numeric, E, Landolt C, children,
  • Masks: Vertical, horizontal, single point, red-green, astigmatic
  • Working distance 2.8 to 6.8 metes, adjustable
  • Remote control : IR, pda or numpad

3) Patient Database

  • Select, insert, update, delete, search medical records (unlimited number)
  • Medical images
  • Appointments - calendar
  • Password protection and data encryption
  • MsAccess or MsSQL database