Most of us take our vision for granted, assuming that everyone sees the world the same way we do. However, for a significant portion of the population, this isn't the case. Binocular vision, which allows us to perceive depth and see the world in three dimensions, is the norm. Yet, Binocular Vision Dysfunction (BVD) affects 10-20% of people, disrupting this natural way of seeing. At AvalonWeb.com.au, our Equal-Eyes Team understands the struggles of dealing with strabismus, amblyopia and BVD firsthand. Having lived with these challenges ourselves, we know what it's like to navigate life with BVD and how to test it using binocular vision dysfunction tests. That's why we've created this comprehensive guide to help you understand what a binocular vision test entails and how you can perform different BVD eye tests online for free and from the comfort of your home.
First, we need to understand what we’re trying to test
Binocular vision is the ability of both eyes to work together to create a single, cohesive image. This crucial visual function allows us to perceive depth and three-dimensional structures, also known as stereopsis, providing us with a comprehensive view of our surroundings.
Know its antagonist: Binocular Vision Dysfunction (BVD)?
Binocular Vision Dysfunction occurs when the eyes are unable to coordinate properly, leading to various visual disturbances. These dysfunctions can manifest as double vision, eye strain, headaches, strabismus and difficulties with activities that require precise visual alignment.
Emphasizing Binocular Vision Tests
Binocular Vision Assessments, also known as Binocular Vision Tests, are designed to evaluate key binocular cues and determine how well your eyes work together. Here, we offer three online free tests: covering, questionnaire, and images, which provide a thorough analysis of your binocular vision abilities.
What about the Binocular Dysfunction Test?
Interestingly, something no one else mention is the fact that somehow a Binocular Vision Test acts at the same time as a Binocular Dysfunction Test and this because after taking a Binocular Vision Test it will either prove or deny the presence of any BVD.
DIY: 2 Binocular Vision Tests & Binocular Dysfunction Tests
Without further ado let's look at two easy-to-do yet effective options to perform BVD eye test online:
Binocular Vision Dysfunction Test 1: Image Testing
For this test technique, patients are shown images or patterns and asked to describe their perceptions. This test evaluates binocular fusion, eye convergence, and depth perception.
For the purpose of this at-home test, we will present you with an image and instructions to follow:
What follows is a sample image of a big red "X" inside a white square with black borders. This image test reflects the ability to effectively converge the eyes and perceive each image sent to each eye. It also tests the visual acuity of each eye.
To Perform It Just Follow 3 Simple Steps:
- Hold a finger halfway between your eyes and the screen (about 20 cm from your face).
- Fix your gaze on your finger (it can be either the left or right-hand finger).
- You should see two slightly transparent "X"s, similar to the illustration below.
Attention: This test is not a substitute for a diagnosis made by a medical specialist, such as a strabismus doctor, ophthalmologist, or optometrist.
What evaluation criteria should I follow?
To self-evaluate, consider the possibility of a binocular vision problem if:
- You see one "X" more clearly than the other, which could correspond to amblyopia. In this case, the brain partially or totally suppresses the signal sent by one or both eyes.
- You see only one "X" when you should see two.
- One "X" is larger than the other.
- One "X" appears and disappears.
Binocular Vision Dysfunction Test 2: Cover Test
The cover test involves covering one eye at a time to see how the uncovered eye responds. This test helps detect eye misalignments and evaluates eye teaming and ocular posture. More detailed on this on the strabismus test post, since this is a test used to identify the presence of strabismus.
What Visual Abilities Are Tested?
During a Binocular Vision Assessment, several key visual abilities are tested, including:
- Eye Teaming (Vergence)
- Binocular Fusion
- Eye Convergence
- Depth Perception (3D)
- Working Memory
- Visual Integration
- Visual Perception
- Processing Speed
- Ocular Posture (Resting Position)
- Ocular Motility (Eye Movements)
- Spatial Awareness and Visual Attention
- Accommodation (Eye Focusing Skills)}
When is a Binocular Vision Assessment Performed?
A Binocular Vision Assessment can be used as a preventive examination to test the health of vision even in people with healthy eyesight. However, it is generally performed when individuals report experiencing symptoms of binocular vision dysfunction and need to be evaluated. This assessment helps diagnose disorders such as strabismus (crossed eyes), amblyopia (lazy eye), head trauma, and muscle or nerve irregularities.
Benefits of the Binocular Vision Test
The Binocular Vision Test offers numerous benefits, including early identification of vision problems, improved treatment outcomes, a better understanding of visual challenges, and enhanced quality of life through effective management of BVD symptoms.
If you test “positive” for BVD, we’re here to help
Equal-Eyes: An Innovative Vision Therapy For Recovering Binocular Vision
AvalonWeb.com.au is committed to providing valuable guides and information on overcoming strabismus, lazy eye, and binocular vision disorders. Our team offers Equal-Eyes, an innovative VR vision therapy tailored for adults with lazy eye and binocular vision dysfunctions. We understand the challenges faced by those dealing with these disorders and strive to offer effective solutions and support.
For more information and resources, keep navigating this website and explore our comprehensive guides and our unique bvd visual therapy option.
Conclusion
Vision is a precious gift, yet Binocular Vision Dysfunction (BVD) affects 10-20% of the population, disrupting how they see the world. At AvalonWeb.com.au, our Equal-Eyes Team understands these struggles firsthand and is dedicated to providing support. Our comprehensive guide on binocular vision tests will help you understand BVD and perform various tests from the comfort of your home. If you test positive for BVD, we offer innovative vision therapy options to support your journey to better vision. Explore our resources and take control of your visual health today.
FAQs About the BVD Tests
The BDV tests offered here in this blog post can take around 5-10 minutes. Nevertheless, a professional BVD assessment typically takes about 30-60 minutes.
In the case of the BVD eye test promoted in this blog post, the Feedback will be a self feedback that the person will take in himself. Regarding the professional BVD tests, the Feedback is usually provided immediately after the assessment, although some tests may require additional analysis.
Yes, children can take the test, and it is beneficial in identifying vision problems early on.
Thanks to these 2 BVD tests offered in this post, you will be able to spot key BVD symptoms, in order for you to consider visiting a specialist or not. The Professional Binocular Vision Assessment will provide a comprehensive evaluation and help diagnose BVD if present.
Yes, vision problems can sometimes contribute to behavioral issues, especially in children who struggle with tasks like reading.