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PVVAT™

PVVAT™ is a state-of-the-art computerized visual acuity software program designed and built by experts with uncompromised attention to detail.

Many of the visual acuity systems available today evolved from software programmers entering the eye care profession as other markets shrank. Others emerged from companies that provide other devices to the industry with core competencies based elsewhere. Many of these companies are not aware of the science or the importance of optotype design, selection, sizing, spacing, contrast levels and many other aspects of testing vision. You could buy another system and wonder about those details or, for about the same cost you could buy the PVVAT™ and know that you have a precise vision testing tool from a recognized leader. One that’s easy to use, expandable, upgradeable and is loaded with features.

PVVAT™ is a product of many years experience working with and for dedicated professionals like you.

Features include:

  • A complete line of acuity tests in one easy to use software solution. 
  • Automatically randomized optotypes to prevent memorization. Ability to easily create and save your favorite test configurations.
  • Single line, multi line ETDRS chart or single optotype, with or without crowding bars or MassVAT® frame. Easily choose high contrast or selectable low contrast levels.
  • Loaded with only our optotypes. Accepted, approved and trusted worldwide. Patti Pics®, Sloan Letters, Landolt C, Tumbling E, PV Numbers®, HOTV. 
  • Much, Much More! Click Here.


About Precision Vision

For nearly forty years, Precision Vision has built a reputation of producing the most accurate and most durable vision testing tools available, including vision test charts for visual acuity measurement, ETDRS eye vision test charts, and more. We have worked closely with some of the greatest contributors to the eye care profession, creating high quality eye vision test charts and other devices by combining ideas, expertise and high standards. Doctors, researchers and practitioners around the world depend on our commitment to quality.

In the 1980's we printed the first ETDRS charts, and developed the first standardized viewer, The ETDRS Illuminator Cabinet™. Our visual acuity test cabinet and charts quickly became and remain the benchmark worldwide for studies, trials and general practice. Since our beginning, we have manufactured a variety of pediatric vision testing tools, eye test charts and vision tests for numerous purposes including low contrast, low vision, visual field, color tests and more.

On the forefront of pediatric testing with HOTV and other symbols, we now introduce our newest development in the Patti Pics™ pediatric test system. With the addition of a fifth optotype, Patti Pics™ have been designed to meet visual acuity test standardization criteria. It is also the only five symbol test with optotypes blurring equally at threshold while following the Snellen principal with calibration targeted to the ETDRS Sloan letter charts. This test system provides a more direct correlation from symbols to letters while lowering probability of guessing correct answers during tests and screenings. A Poster presented at ARVO this year provides some helpful information about the effectiveness of the test compared to a similar product.