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Contrast Sensitivity Test
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Read the article to know more about Contrast Sensitivity Test

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Dr. Aditya Raut M.B.B.S D.O.MS
Updated on Mar 16  •  2 mins read

Table of contents

What is Contrast Sensitivity Test
When to do Contrast Sensitivity Test
Diseases in which Contrast Sensitivity Test is done
Symptoms that require Contrast Sensitivity Test
How Contrast Sensitivity Test is done
How long will Contrast Sensitivity Test take
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What is Contrast Sensitivity Test

Contrast Sensitivity Test is an important diagnostic tool used to measure an individual's ability to detect differences in shades of grey against a white background.This test is used to check for any vision problems that can affect an individual's ability to clearly distinguish between different levels of contrast.

The test involves showing a patient a series of grey squares on a white background and asking the patient to identify which squares are lighter or darker.This test is especially important for people who drive at night or in low light conditions, as it can help detect any vision problems that could impair the individual's ability to see properly in these conditions.

The results of this test can help to diagnose vision problems such as cataracts, glaucoma, macular degeneration, and other vision problems.It can also be used to evaluate the effectiveness of certain treatments for vision problems.

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When to do Contrast Sensitivity Test

  1. Contrast Sensitivity Test should be done in people who have vision impairment, those who have had a recent eye surgery or those who are at risk of developing certain eye diseases. People who experience decreased vision in one eye, or those who experience distorted vision, should consult a doctor urgently for Contrast Sensitivity Test. Additionally, those with a history of macular degeneration, glaucoma, diabetes, or cataract should also consider consulting their doctor for a Contrast Sensitivity Test.
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Diseases in which Contrast Sensitivity Test is done

  1. Macular Degeneration: Contrast Sensitivity Test can help detect foveal sensitivity changes in patients with macular degeneration, which can indicate the severity of the disease.
  2. Glaucoma: Contrast Sensitivity Test can help detect changes in vision related to glaucoma, and can help determine the extent of the disease.
  3. Diabetic Retinopathy: Contrast Sensitivity Test can help detect changes in vision related to diabetic retinopathy, and can help determine the extent of the disease.
  4. Retinitis Pigmentosa: Contrast Sensitivity Test can help detect changes in vision related to retinitis pigmentosa, and can help determine the extent of the disease.
  5. Cataract: Contrast Sensitivity Test can help detect changes in vision related to cataracts, and can help determine the extent of the disease.
  6. Dry Eye Syndrome: Contrast Sensitivity Test can help detect changes in vision related to dry eye syndrome, and can help determine the extent of the disease.
  7. Strabismus: Contrast Sensitivity Test can help detect changes in vision related to strabismus, and can help determine the extent of the disease.
  8. Uveitis: Contrast Sensitivity Test can help detect changes in vision related to uveitis, and can help determine the extent of the disease.
  9. Age-related Macular Degeneration: Contrast Sensitivity Test can help detect changes in vision related to age-related macular degeneration, and can help determine the extent of the disease.
  10. Corneal Abrasions: Contrast Sensitivity Test can help detect changes in vision related to corneal abrasions, and can help determine the extent of the damage.
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Symptoms that require Contrast Sensitivity Test

  1. Blurry vision: You may have difficulty seeing things clearly and may notice a blurriness around the edges of objects.
  2. Halos around lights: You may see a halo or rings of light around streetlights, headlights, or other bright lights.
  3. Double vision: You may see two of the same object instead of one.
  4. Glare sensitivity: You may be sensitive to bright lights, making it difficult to see in certain situations.
  5. Night blindness: You may have difficulty seeing in the dark or at night.
  6. Poor depth perception: You may have difficulty judging distances or determining the size of objects.
  7. Poor color perception: You may have difficulty distinguishing colors or seeing color-contrast in certain situations.
  8. Poor night vision: You may have difficulty seeing at night, even in well-lit areas.
  9. Poor peripheral vision: You may have difficulty seeing objects that are not directly in front of you.
  10. Eye strain: You may experience headaches, eye fatigue, or blurred vision after long periods of looking at a computer screen or other electronic device.
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How Contrast Sensitivity Test is done

  1. The Contrast Sensitivity Test is a quick and painless procedure that helps us to detect any possible vision problems. It is performed using a special automated machine.
  2. First, you will be seated in front of the machine and asked to wear a headset. Then, the machine will present a series of patterns that vary in contrast. The patterns will appear on a screen inside the machine, and you will be asked to indicate whether you can see the pattern or not. This process is repeated several times with different levels of contrast.
  3. The entire process takes only a few minutes and is completely painless. The results of the test will help us determine if you have any vision problems related to contrast sensitivity.
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How long will Contrast Sensitivity Test take

  1. .
  2. The Contrast Sensitivity Test usually takes about 15 minutes to complete. Generally, the results are available immediately after the test is done and the patient can be provided with a copy of the report. However, if a more detailed analysis is required, it may take a few days for the results to be available.
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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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