Grating Acuity Tests
The Teller Acuity Cards® are widely used to measure grating acuity in infants, young children and individuals with disabilities. The extensive evidence-base gathered in their development and use provides a strong foundation for their application in ophthalmology, optometry and developmental practice. Teller Acuity Cards® are referenced over 5,000 times in the US National Library of Medicine National Institutes of Health (PubMed) and have become recognized as the Gold Standard for grating acuity testing worldwide.
Patti Stripes Square Wave Grating Paddles are a durable, low cost and portable option for measuring grating acuity and contrast in infants, young children and individuals with disabilities.