Cal Coast Ophthalmic Instruments, Inc.
Authorized distributor for Topcon, Reliance/Haag-Streit, Reichert, Tomey, Keeler, Kowa, Welch AllynTOPCON | RELIANCE / HAAG-STREIT | REICHERT | TOMEY | KEELER | KOWA | WELCH ALLYN | AND MANY MORE

Digital Visual Acuity Systems

Stimuli? Acuity System

Haag-Streit Stimuli? Acuity System
Advanced Refraction Equipment - the Stimuli Advanced Version 4.0
  • Randomizes optotypes and eliminates patient memory effect.
  • Calibrates for long, short, or folded exam rooms.
  • Wide Dynamic Range, High Sensitivity
  • Offers pediatric patients special video and fixation targets.
  • Resolves to Sub-pixel accuracy.


  • Stimuli? Advanced Version 4.0
    The Stimuli? is a refraction device that replaces the old technology, the automated projector. Stimuli? eliminates the "memore effect" by bringing virtually unlimited charts to the patient in a random manner. All functions are at the practitioners' fingertips.

    All-Inclusive Computerized Projection System
    The Stimuli? System includes the Apple iMac computer with built-in monitor, Stimuli? Software, hand controller, pediatric suite of Octotypes, cartoons feature package, and contrast sensitivity tests.

    Adaptable to Your Requirements
    All Stimuli? units can be calibrated from long, short, or folded examination rooms for direct or mirrored viewing. Chart information can be graphical, via on-screen display, or audible via verbal line read-out. Stimuli? features automatic daily start-up and shutdown.

    Exceptional Capabilities
    Stimuli? Advanced Version 4.0 supports many types of acuity charts, optotypes, associated vision tests and fixation devices in a simple remote controlled unit. The Stimuli? system offers more than 16 major selectable features, including LogMar, Snellen or Decimal units. An internal CD player may be utilized for room background music.

    Intuitive, Wireless Hand Control
    The buttons are grouped in a logical layout with the most commonly used buttons grouped in a circular pattern around a single button in the middle. The controller allows the practitioner to remain in eye contact with the patient while conducting the examination and selecting one of the features.

    Available Tests
    Upon initial start-up, the first test is the multi-line acuity chart. Other available charts include:
    Red/Green that can be isolated and reversed Unique sizable 4-dot Fixation test on black or white screen Astigmatic dial with controllable indicator and time and date charts. Once a chart is selected, the different optotypes can be changed Excellent for Examining Pediatric Patients In addition to standard pediatric animals that never require repair, a Stimuli? Pediatric version is available with a suite of appealing optotypes-tumbling E's and C's, cartoons and tests.
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