Articles

Snellen Eye Test Charts Interpretation

Visual Acuity Measurement & Chart Design Understanding Grid Calibration, Sizing Notations, and Logarithmic Progressions Snellen designed his optotypes on a 5×5 grid, on which the line thic...

Measuring Snellen Visual Acuity

Measuring Snellen Visual Acuity Analyzing Calibration Grids, Test Distance Variations, and Regional Notations Snellen designed his optotypes on a 5×5 grid, on which the line thickness is one ...

Snellen Eye Chart - a Description and Explanation

Snellen Eye Chart Snapshot The Evolution of Visual Acuity Measurement from Snellen to ETDRS Snellen Eye Chart Snapshot What Dr. Herman Snellen did for the field of vision testing is comparabl...

Introduction to Visual Acuity Measurement

A Guide to Vision Testing Tools Selecting Methods and Diagnostic Instruments for Accurate Clinical Assessment ...

The Jaeger Notation Debate

To Jaeger or Not to Jaeger Understanding the Debate Around Jaeger Notation in Vision Testing To Jaeger or Not to Jaeger, That is the Question When Jaeger published his notation print samples ...

Introducing Precision Vision University - October 2013

IN THE NEWS Introducing Precision Vision University Precision Vision is proud to introduce Precision Vision University (PVU). PVU will be your source for videos from some of the leading ex...

Precision Vision and ETDRS - ETDRS Charts, Illuminator cabinet - Precision Vision

IN THE NEWS Precision Vision and the ETDRS Legacy Celebrating Over 30 Years of Global Standardization in Visual Acuity Testing Welcome, friends. Nearly 30 years ago, a landmark study called E...

Precision Vision Introduces the BRVT Testing Chart - Precision Vision

IN THE NEWS Precision Vision Offers Breakthrough Low Vision Test: The BRVT Test From “Counting Fingers” and “Hand Motion” to Evaluating Low Vision Practically Anywhere, the Journey in Low-Visio...

Clinical Colour Vision Tests

Clinical Colour Vision Tests A Review of Structure, Function, and Colorimetric Construction in Diagnostic Optometry Abstract The structure and function of the available and significant cli...