Binocular Vision Test
Dr Rajeev Raut Eye Clinic Raut Eye Care

Read the article to know more about Binocular Vision Test

Reviewed by
Dr. Aditya Raut M.B.B.S D.O.MS
Updated on Mar 10  •  2 mins read
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What is Binocular Vision Test

The Binocular Vision Test is an assessment of how well both eyes work together.It is performed by an ophthalmologist or optometrist to determine if a person has good depth perception, eye coordination, and depth perception.

The test measures the accuracy of eye alignment, eye movements, and stereopsis, or the ability to see depth.It is typically done with an instrument called a phoropter, which holds different lenses that the patient looks through.

During the test, the eye doctor will ask the patient to look at various objects and compare the objects seen by each eye.The doctor will also measure the patient’s visual acuity, or ability to see clearly.

The binocular vision test can help diagnose vision problems such as strabismus, or crossed eyes, and amblyopia, or lazy eye.It can also help determine if someone needs eyeglasses or vision therapy to improve their vision.


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When to do Binocular Vision Test

  1. A Binocular Vision Test should be conducted for anyone who is experiencing any kind of vision problems, such as double vision, difficulty reading, headaches, or eye strain. Additionally, it may be useful for people who experience a sudden or gradual change in vision, such as a decrease in the ability to focus on objects.
  2. People who experience any of the following should consult a doctor urgently for a Binocular Vision Test: blurred vision, double vision, dizziness, nausea, or any other sudden change in vision. Also, individuals who experience any type of eye injury or trauma should consult a doctor immediately for a Binocular Vision Test.

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Diseases in which Binocular Vision Test is done

  1. Amblyopia: Binocular Vision Test will help to detect the degree of suppression of vision in one eye and can help determine the correct treatment.
  2. Strabismus: Binocular Vision Test will help to identify the degree of eye misalignment and the associated eye muscle dysfunction.
  3. Convergence Insufficiency: Binocular Vision Test will help to identify the degree of difficulty in converging the eyes and the associated eye muscle dysfunction.
  4. Diplopia: Binocular Vision Test will help to identify which eye is affected and the degree of double vision associated with the dysfunction.
  5. Anisometropia: Binocular Vision Test will help to detect the degree of difference in vision between the two eyes and the need for glasses or contact lenses.
  6. Refractive Errors: Binocular Vision Test will help to identify the degree of refractive error in each eye and the need for glasses or contact lenses.
  7. Presbyopia: Binocular Vision Test will help to detect the degree of near vision difficulty and the need for glasses or contact lenses.
  8. Myopia: Binocular Vision Test will help to detect the degree of difficulty in seeing objects at a distance and the need for glasses or contact lenses.
  9. Hyperopia: Binocular Vision Test will help to detect the degree of difficulty in seeing objects at a near distance and the need for glasses or contact lenses.
  10. Astigmatism: Binocular Vision Test will help to detect the degree of distorted vision caused by the irregular curvature of the cornea and the need for glasses or contact lenses.

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Symptoms that require Binocular Vision Test

  1. Diplopia (double vision): A symptom where two images are seen instead of one, causing a loss of depth perception.
  2. Loss of central vision: A symptom where the center of the field of vision is blurred or distorted.
  3. Difficulty reading or focusing on near-distance objects: A symptom where it is difficult to read or focus on objects located close to the eyes.
  4. Difficulty driving or seeing objects at a distance: A symptom where objects at a distance appear blurred or distorted.
  5. Loss of peripheral vision: A symptom where the outer edges of the field of vision are blurred or distorted.
  6. Photophobia (sensitivity to light): A symptom where bright light causes discomfort and eye strain.
  7. Squinting: A symptom where the eyes appear to be turned inward or outward, resulting in an inability to focus.
  8. Strabismus: A symptom where the eyes do not look in the same direction, resulting in a loss of depth perception.
  9. Headaches and eye fatigue: A symptom where headaches or eye fatigue occur after sustained visual activity.
  10. Excess tearing or dryness: A symptom where the eyes are excessively teary or dry, resulting in irritation and discomfort.

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How Binocular Vision Test is done

  1. The Binocular Vision Test is a routine eye exam that helps us determine how well your eyes work together. The automated test will measure your ability to use both eyes together at the same time.
  2. First, we will place a special instrument called a phoropter in front of your eyes. This instrument has lenses of different powers that will help us measure how well your eyes work together.
  3. Next, we will ask you to look through the phoropter and focus on a small target. You will be asked to indicate when the target appears to be in focus. We will then change the lenses in the phoropter and repeat the process until we find the combination of lenses that give you the best vision.
  4. After the binocular vision test is complete, your eye doctor will be able to tell how well your eyes work together and if you need any treatment or glasses to improve your vision.

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How long will Binocular Vision Test take

  1. The Binocular Vision Test usually takes around an hour, depending on the complexity of the tests. The report will take a few more days to be ready, since we need to analyze the results and interpret them. After the test, we will be able to give you a better idea of when the report will be ready.

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Reviewed By

Dr.Aditya Raut, MBBS, DOMS, Cataract and Refractive Surgeon, with experience of over 3000 cataract surgeries.

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Article Reviewed by Dr. Aditya Raut M.B.B.S D.O.MS Cataract Lasik and refractive surgeon
Specialist in number reduction surgery, Refractive Lens exchange and ICL surgery.

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