The Clinical Gold Standard in Vision Testing
Precision-engineered visual acuity and functional vision solutions trusted by clinical researchers, CROs, sponsors, and eye care professionals worldwide.
For decades, Precision Vision has helped clinical and research teams generate reliable, reproducible vision data through standardized testing systems designed for regulatory confidence and endpoint integrity.
From ETDRS visual acuity to reading performance, contrast sensitivity, pediatric assessment, and digital testing solutions, our products support consistency across sites, studies, and clinical environments.
Built for Precision. Trusted for Consistency.
Small inconsistencies create significant variability.
Our solutions help reduce variability caused by:
- Environmental differences
- Inconsistent luminance
- Non-standardized testing procedures
- Site-to-site variability
- Examiner inconsistency
Product Categories
Supporting Endpoint Integrity Across Global Clinical Trials
Precision Vision partners with clinical research organizations, sponsors, and academic institutions to support standardized visual function assessment across every phase of research. Our systems are designed to support:
- Protocol consistency across sites
- Standardized luminance and testing conditions
- Global deployment readiness
- Regulatory documentation and traceability
- Reliable, reproducible visual endpoints
Why Precision Vision
Standardization First
Testing systems designed to support consistency across sites, examiners, and environments.
Regulatory-Focused Design
Solutions built to support protocol adherence, documentation, and clinical trial readiness.
Global Research Support
Products utilized by researchers, clinicians, and institutions worldwide with multilingual testing capabilities.
Clinical-Grade Reliability
Precision manufacturing and proven testing methodologies trusted across ophthalmic research and care settings.
Featured product
Two smaller groups 5M to 1.6M for repetitive testing (20/25, 6/7.5 to 20/8, 6/2.4 equiv.).
Can be wall-mounted.
PV numbers are an alternative vision test to Sloan, Snellen, Patti Pics, Landolt C, and Tumbling E tests. PV Numbers are designed for vision testing in several different languages and for several types of patients. The PV Number test can be used for languages across the globe. Also, PV Numbers are useful for mute patients and for children who may be preliterate but may know their numbers.
Clinical Trial Solutions
Standardizing visual endpoints across every site, every trial, every region.
For more than 50 years, Precision Vision has provided validated tools used worldwide to measure visual function in clinical research. Our instruments are relied upon by physicians, researchers, and clinical trial sponsors across 60+ countries and 1,000+ certified clinical sites.
Precision Matters When Outcomes Matter
Frequently Asked Questions
What are clinical vision testing solutions?
Clinical vision testing solutions are standardized tools used to measure visual acuity, reading performance, contrast sensitivity, and functional vision in clinical and research settings.
What is an ETDRS chart?
An ETDRS chart is a standardized logMAR visual acuity chart commonly used in ophthalmology research and clinical trials to support consistent vision measurement.
Why is standardized vision testing important in clinical trials?
Standardized vision testing helps reduce variability across investigators and study sites, supporting reliable and reproducible clinical endpoints.
What types of vision testing products does Precision Vision offer?
Precision Vision offers ETDRS charts, illuminator cabinets, reading acuity tests, pediatric vision testing tools, contrast sensitivity assessments, and clinical trial solutions.
Who uses Precision Vision products?
Precision Vision products are used by ophthalmologists, optometrists, CROs, clinical researchers, academic institutions, and healthcare professionals worldwide.
