Natural Vision Testing
The Frisby Stereotest is a random element, real depth object, viewed with natural vision.
It is easy to administer and requires no special glasses, allowing for preferential-looking outcomes.
Renowned Opthalmologist Gerald Westheimer
Learn more about his conditions for optimum assessments of steropsis.
What is Stereovision, and Why Test for It?
Detecting stereovision issues early is vital for treating vision problems like amblyopia and strabismus that can impact depth perception and overall visual health.
Strabismus and Amblyopia
Frisby Stereotests often are used by orthoptists as the preferred stereotest in the UK to support the diagnostics and management of these conditions - from babies and toddlers, to school children and teens.
Unique Features of the Frisby Stereotest
As well as being very easy to administer, unlike some stereotests, the Frisby allows checking for test understanding, and for repeat testing without the patient learning how to pass for the wrong reasons.
Testing Babies and Young Children
The Frisby Stereotest makes assessing stereovision in babies and young children simple, with even preverbal children able to be assessed through pointing or natural preferential looking at the target.
How Stereotests Plays a Part in Vision Therapy
Stereotests are essential tools in vision therapy, helping track progress, improve depth perception, and strengthen binocular vision through engaging, practical assessments.
Stereopsis Assessment in Elderly Patients
Stereotests can help detect vision changes early, reducing fall risk, improving spatial awareness, and maintaining independence through better depth perception.
Presented Correctly, the Frisby Gives No Monocular Clues
The Frisby Stereotest provides true binocular depth assessment when used correctly and avoids misleading monocular clues.
“I use the Frisby Stereotest as the first part of every examination of a very young patient after obtaining History and Symptoms from the parent. Quick and easy for both young patient and Optometrist, it brings a smile to child and parent. Watching the child’s preferential eye gaze is often enough for a response.”
Antony Mazeika
Optometrist, UK
“Possibly the most useful subjective test of stereopsis for young children is the Frisby Stereotest, as it provides real depth in the display and does not require the child to wear dissociating spectacles.”
Professor Margaret Woodhouse
Specialist in Paediatric Optometry, School of Optometry and Vision Sciences, Cardiff University
“A very useful screening method.. easy to explain to the patient in terms of what they are supposed to be seeing due to its size and simplicity …the screener is a useful size, handy to have a portable test for stereopsis at an inexpensive price. The test easily fits into my equipment bag so is a very useful addition.”
Tom Petty
Trainee Orthoptist
Organisations Using Frisby Stereotests
