Best DVA Test in Dhaka

Some vertigo and balance symptoms are easy to notice but difficult to pin down without the right test. One such symptom is blurred or unstable vision that occurs specifically during head movement, even when vision is perfectly clear while sitting still. This is where the DVA test becomes essential. If you are searching for the best DVA test in Dhaka, this guide explains what the test measures, why it matters, and how Vertigo Balance, led by Dr. Sajib Saha, provides accurate, specialist-led vestibular evaluation.

What Is the DVA Test

DVA stands for Dynamic Visual Acuity. It is a diagnostic test that measures how well a person can maintain clear vision while their head is moving, compared to when their head is completely still. This ability depends on a reflex known as the vestibulo-ocular reflex, or VOR, which allows the eyes to automatically adjust and stay fixed on a target even as the head turns or moves. In a healthy vestibular system, this reflex works so efficiently that vision remains clear whether the head is still or in motion. When the vestibular system is impaired, however, vision often becomes blurred or unstable specifically during head movement, a symptom known as oscillopsia.

Why the DVA Test Matters

A standard eye exam is almost always performed with the head completely still, which means it cannot detect problems that only appear during movement. This is a significant gap, since many patients with vestibular disorders report normal vision at rest but experience blurred or jumping vision when walking, turning their head quickly, or moving through a busy environment. The DVA test directly addresses this gap by comparing static visual acuity, measured with the head still, to dynamic visual acuity, measured while the head is moving, giving a clear and objective measure of how well the vestibulo-ocular reflex is functioning.

How the DVA Test Is Performed

During a DVA test, the patient is first asked to read a standard eye chart while keeping their head completely still, establishing a baseline measurement of static visual acuity. The patient is then asked to read the same or a similar chart again while moving their head from side to side at a controlled, consistent speed. The examiner records how many lines of visual clarity are lost between the still and moving conditions. This difference, often referred to as lines lost, provides a clear indication of how well the vestibulo-ocular reflex is compensating for head movement. A significant drop in visual acuity during movement points toward vestibular dysfunction.

Conditions the DVA Test Can Help Identify

The DVA test is particularly useful in identifying and evaluating conditions involving a weakened or damaged vestibulo-ocular reflex, including vestibular neuritis, labyrinthitis, and bilateral vestibulopathy, a condition where both sides of the inner ear balance system are affected. It is also frequently used to track recovery progress in patients undergoing vestibular rehabilitation therapy, since improvements in DVA scores over time offer an objective way to measure how well the vestibular system is compensating and recovering.

How the DVA Test Fits Into a Complete Vestibular Evaluation

At Vertigo Balance, the DVA test is typically used alongside other vestibular assessments to build a complete and accurate diagnostic picture rather than being used on its own. This often includes VNG (Videonystagmography), which records involuntary eye movements to assess overall vestibular function, and the vHIT test, which measures the vestibulo-ocular reflex directly using rapid head movements, offering results that closely relate to what the DVA test evaluates but through a different method. You can explore how these tests compare and work together in our detailed guides on the best test for dizziness and the best test for vertigo, which cover the full range of diagnostic tools used for balance disorders.

Because dizziness can sometimes be influenced by factors outside the vestibular system, a thorough evaluation at Vertigo Balance may also involve ruling out other contributing causes. For patients whose symptoms may be connected to disrupted sleep, our guide on when a sleep test is needed explains this connection in more detail.

Who Should Consider a DVA Test

A DVA test may be recommended for patients experiencing blurred or unstable vision specifically during head movement or while walking, unexplained dizziness or unsteadiness that has not been clearly diagnosed through basic examination, ongoing balance symptoms following a head injury or a vestibular infection, and patients undergoing vestibular rehabilitation who need objective tracking of their recovery progress. Older adults concerned about fall risk due to balance and vision instability during movement may also benefit from this evaluation.

Why Choose Vertigo Balance for DVA Testing in Dhaka

Vertigo Balance is a specialized vertigo and balance disorder center in Dhaka, led by Dr. Sajib Saha, MBBS (DU), BMDC Reg A-65718, and certified by the American Institute of Balance (AIB). The center provides comprehensive evaluation and evidence-based treatment for vertigo, BPPV, vestibular migraine, Meniere’s disease, and other balance disorders, relying on advanced diagnostic testing and personalized treatment planning rather than a one-size-fits-all approach.

Once a diagnosis is confirmed, treatment is tailored to the specific findings. Patients diagnosed with positional vertigo may benefit from the approaches outlined in our guide on BPPV treatment, while patients with vestibular weakness or ongoing balance difficulty are often guided through our structured Balance Retraining Therapy program, which is particularly effective for improving vestibulo-ocular reflex function over time.

What to Expect During Your Visit

Your visit to Vertigo Balance begins with a detailed discussion of your symptoms and medical history. Based on this, Dr. Saha determines which specific tests, potentially including DVA, VNG, or vHIT, are most relevant to your case. After testing, results are explained clearly, and a personalized treatment plan is developed based on the confirmed diagnosis rather than a generic protocol.

Clinic Location and Contact

Vertigo Balance is located at 68-69 Concept Tower, 3rd Floor, Room 337, Green Road, Dhaka-1205. Appointments can be booked by calling 01915 886655 or 01915 443366.

Book Your DVA Test and Vestibular Evaluation Today

Blurred vision during head movement or unexplained dizziness should not be left undiagnosed. The DVA test, combined with a comprehensive vestibular evaluation, can help identify the exact cause of your symptoms and guide you toward an effective, targeted treatment plan rather than continuing to live with unresolved balance issues.

Visit our Appointment page or call our clinic today to schedule your DVA test and vestibular evaluation with Dr. Sajib Saha at Vertigo Balance in Dhaka.

This content is intended for general educational purposes and does not replace a professional medical evaluation. Please consult Dr. Sajib Saha or a qualified specialist for an accurate diagnosis of your specific symptoms.