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1. ophthalmologymanagement.com › issues › 2011Visual Field Exam Analysis: How Reliable Are the Results?

   ophthalmologymanagement.com › issues › 2011

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   Feb 1, 2011 · Patient with normal visual field, but false negative responses toward the end of the test cause the greyscale to show areas of depressed sensitivity near the edge (arrows), and not in a pattern diagnostic of any known disease.

2. www.verywellhealth.com › understanding-your-visualVisual Field Test: What It Is and What the Results Mean

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   • What Is A Visual Field Test?
   • Purpose of A Visual Field Test
   • Who Should Have A Visual Field Test?
   • Types of Visual Field Tests
   • Interpreting The Results of Your Visual Field Test
   • What Happens After Your Visual Field Test?
   • Summary

   Visual field testing is done while your gaze is fixed on a central point directly in front of you to assess what you can see straight ahead, on the sides, and up and down. It can help identify scotomas or "blind spots." These are areas in the field of vision where you are unable to perceive an image. Four quadrants are used: 1. Temporal: toward you...

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   A visual field test measures how well you can see above, below, and on either side of you. This test can help diagnose diseases of the eye, optic nerve, and central nervous system. Your vision relies on your retina, optic nerves, and your brain. Vision loss occurs due to diseases that affect any part of this pathway. Certain patterns of visual fiel...

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   People with certain conditions of the eyes need to be monitored regularly for signs of disease progression and vision loss. You should also request a visual field test if you believe you are having vision problems. Causes of abnormal visual fields include: 1. Glaucoma 2. Diabetes 3. High blood pressure 4. Multiple sclerosis 5. Optic glioma 6. Hyper...

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   Methods for testing visual field vary. Some simple screening tests can be done in a few minutes during a regular vision check-up. Other tests are more complicated and comprehensive computerized tests.

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   Test results are often presented in charts. These charts show the range of sensitivity, or how well you can see in different parts of your field of vision. The charts may include: 1. Gray-scale map:Darkened areas in a gray-scale chart show the parts of your visual field that may have vision loss or blurred vision. 2. Decibel scale:Test results are ...

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   If you have abnormal results, your healthcare provider may order additional tests. Depending on your results, you may need to see a specialist, such as a neurologist or an endocrinologist. The next stages of testing might involve brain imaging or blood tests. Blood tests screen for conditions like: 1. Diabetes 2. Hypertension 3. Thyroid disease Ima...

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   A visual field test is often done as a part of an annual eye exam. It helps your healthcare provider understand how well you can see above, below, and on either side of you. The results of these tests can point to specific types of vision loss. They can also help doctors monitor the progression of glaucoma. There are a few different types of visual...

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3. eyeguru.org › essentials › visual-fieldsHow to interpret visual fields: 5 most common patterns

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   • Nonspecific / low Reliability / inattention / patient hungry. For every interpretable, reliable visual field you get, you will also get another in which the patient thinks he should be scanning the dome for lights the whole time, is poorly positioned, is exhausted from waiting in your clinic for hours, or is too elderly and arthritic to push the button in time.
   • Superior / inferior arcuate defect. The most common early to mid stage glaucomatous field. The reason these look like arcs and come off the blind spot is that they represent the loss of bundles of nerves as they come out of the optic nerve head.
   • Blind spot enlargement. This can be seen in glaucoma, but also can occur with papilledema and optic nerve head swelling. This would likely be seen in patients with idiopathic intracranial hypertension (aka pseudotumor cerebri).
   • Severe constriction with a central island. Unfortunately, this is end stage glaucoma. At this point, many patients still have great central vision of 20/20 to 20/50, but peripheral vision is nearly gone.

4. diabetesjournals.org › compendia › articleHow to Interpret a Diabetes-Related Eye Examination Report

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   Jul 5, 2022 · It is estimated that ≥20% of people with diabetes first learn of their diabetes status through an eye exam (30). Thus, a diabetes-related eye exam record should include information about the person's diabetes status, ethnicity, age, duration of diabetes if present, and modifiable risk factors.

5. ophthalmicprofessional.com › issues › 2013Avoiding Fixation Losses in Visual Fields Testing - PentaVision

   ophthalmicprofessional.com › issues › 2013

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   Apr 1, 2013 · Finding the Blind Spots. Each eye has a blind spot that corresponds to the optic nerve head, where the absence of photoreceptors produces an absolute scotoma roughly 10°-15° temporal to the fovea. It is located on the horizontal raphe on the side of the eye. Fixation can be tested by mapping the blind spot and then retesting it.

6. www.diabetes.ca › managing-my-diabetes › preventingEye damage and diabetes (diabetic retinopathy)

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   High sugar levels cause the blood vessels to swell and leak into the retina and cause blurred vision or blind spots. If left untreated, new blood vessels may grow and cause further damage to your vision. Regular eye exams are important. All people with diabetes (both type 1 and type 2) are at risk for diabetic retinopathy.

7. People also ask

   Can diabetic retinopathy cause blindness?

   • Diabetic retinopathy can lead to vision changes or blindness. With blood glucose (sugar) control, regular eye exams and early treatment, the risk or worsening of eye damage can be reduced. Having too much sugar in your blood can damage the blood vessels in the part of the eye called the retina. The retina is the tissue lining the back of the eye.

   Eye damage and diabetes (diabetic retinopathy)

   www.diabetes.ca/managing-my-diabetes/preventing-complications/eye-damage

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   What does -2db mean on a vision test?

   • OdB is no different from normal vision. Below -2dB may indicate a problem with vision. Total deviation (TD): These charts show all parts of a person's visual field that differ from people who see normally in the same age group. The numbers show the difference between the patient's test results and what is expected for their age.

   Visual Field Test: What It Is and What the Results Mean - Verywell Health

   www.verywellhealth.com/understanding-your-visual-field-test-3421843

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   What happens during an eye exam if you have diabetes?

   • During the eye exam, your eye-care provider uses a special magnifying instrument to look for any blood vessel damage at the back of your eye. Eye exams are a safe and necessary part of your diabetes management. Contact your eye-care professional directly for an appointment or have your health-care provider refer you for an eye exam.

   Eye damage and diabetes (diabetic retinopathy)

   www.diabetes.ca/managing-my-diabetes/preventing-complications/eye-damage

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8. www.uthsc.edu › hamilton-eye › hei-learnInterpreting Visual fields Original Article Contributed by ...

   www.uthsc.edu › hamilton-eye › hei-learn

   normal population controls. Outcomes include within normal limits, outside normal limits, borderline, general reduction of sensitivity, and abnormally high sensitivity. VFI reports the patients visual field status as a percent of normal population age-matched visual field.