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Doctor insights on: Waves In The Field Of Vision Peripheral

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Dr. Richard Bensinger
1,734 Doctors shared insights

Vision (Definition)

Vision is a feature of a person's brain that allows him to see. He must have normal eyes, optic nerves (that stretch from the eyes to the back of his brain), and visual cortex (the vision center in the brain), in order to see properly. An ophthalmologist is a ...Read more


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I have some early peripheral vision loss but don't notice it in my field of vision. Why?

I have some early peripheral vision loss but don't notice it in my field of vision. Why?

Compensation: The eyes are very good at covering for each other. The peripheral loss which I hope is minor, has been adjusted to by your eyes and there even may be some overlap with the other eye. ...Read more

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Visual field test result normal - 3/14 fixation error. Some peripheral vision loss not in field of vision. Why does test result say normal?

Visual field test result normal - 3/14 fixation error. Some peripheral vision loss not in field of vision. Why does test result say normal?

It is: The fixation losses are related to the reliability of the test. Some peripheral shading is within normal limits on the test. ...Read more

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What is the field of vision threshold and what does it have to do with anything?

Vision map: The visual field exam, taken in a dome like apparatus, maps out the sensitivity of the retina at a broad array of points. It produces a sensitivity MAP like an altitude MAP of a mountain range, which can estimate the health of the retina and also changes in the sensation reception of the brain. Regular fields are done in conditions like glaucoma to estimate progression of loss. ...Read more

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What might cause a grey speck in the field of vision?

Floater?: Very commonly a floater can cause a moving speck in the vision. A more stationary, constant speck in the central vision could indicate more serious conditions. Any new change in vision whether a floater or constant speck should be evaluated by an ophthalmologist. ...Read more

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Why do I see colors in the field of vision every time I look into a bright light?

Why do I see colors in the field of vision every time I look into a bright light?

Visual phenomenon: Bright light bleaches the cells in the retina which relay information to the brain. When bleached, the nerve signals they emit are not accurate of the outside world. They cause the brain to interpret persistent colored lights, this fades as the cells recover. ...Read more

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Can you tell me what is the field of vision threshold and what does it have to do with glaucoma?

Can you tell me what is the field of vision threshold and what does it have to do with glaucoma?

Determines glaucoma: The threshold of vision means the lowest size or intensity of a spot of light that the eye can see. A threshold visual field test is used to detect glaucoma: multiple small spots of light are placed in different areas in a specialized testing device and the patient presses a buzzer if he/she sees them. Glaucoma decreases peripheral vision and threshold testing would show fewer spots seen by you. ...Read more

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What are the binocular boundaries of the field of vision, in degrees, from the point of fixation?

What are the binocular boundaries of the field of vision, in degrees, from the point of fixation?

Approximately 130: The field of vision on either side is about 130 degress from fixation which means that you can actually see something moving from just behind the plane of your ears. Pretty terrific. ...Read more

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What is the relation between the field of vision and the semicircular canals?

What is the relation between the field of vision and the semicircular canals?

Nothing direct: The semicircular canals maintain balance and orientation. The field of vision is the extent of side vision; commonly as a warning signal for things approaching from the side. Dysfunction of the canals does not change the field. Shrinking or changes in the field do not affect the function of the canals. They are both important but independent. ...Read more

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What does field of vision mean?

What does field of vision mean?

See below: Your visual fild is the zone that you are capable of seeing with out moving your eyes (horiz and vert). ...Read more

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Field of vision. What does it mean?

Field of vision. What does it mean?

Peripheral vision: When someone refers to "field of vision" they are usually referring to your visual field, or the entire scope of what you see in your vision, most notably your peripheral vision. This phrase is also often used to refer to a visual field test which tests your extent to see in your peripheral vision. This is a test routinely used in the evaluation and treatment of glaucoma. ...Read more

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Why does my field of vision have flashes stars?

Why does my field of vision have flashes stars?

Exam time: Seeing flashes of light or stars can be associated with eye problems (pvd, retinal tear, etc) or high blood pressure. In pregnancy it can be associated with preeclampsia also. Most doctors want to be called or have a patient seen quickly if such symptoms. A physical and eye exam plus evaluation of blood pressure and tests can help determine what's occurring. ...Read more

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What could cause black dots in field of vision?

What could cause black dots in field of vision?

Get checked: You need to get a dilated exam right away with an ophthalmologist or retina specialist to rule out a potentially serious problem like a retinal tear or detachment. ...Read more

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Two little black dots in my field of vision that float?

Two little black dots in my field of vision that float?

Floaters: It sounds as if you have had a posterior vitreous detachment. This is a situation where the vitreous (jelly) of the eye detaches (not a retinal detachment), it then "crumples" up leaving dots, spots, strands of blurry vitreous; i.e. The "floater". You should have an exam to ensure the incident did not tear the retina, which could lead to a retinal detachment. Wait one year then consider surgery. ...Read more

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I just saw arc of light in my field of vision after I coughed hard?

That's normal: Unless it is recurrent/persistent and/or accompanied by new/worse floaters and/or part of your peripheral vision that goes missing (like a curtain or veil). If the latter is the case, then see an eye doctor, preferably a retina specialist. ...Read more

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Shadows floating around in my field of vision. Why is that happening?

Floaters: It sounds as if you have had a posterior vitreous detachment. This is a situation where the vitreous (jelly) of the eye detaches (not a retinal detachment), it then "crumples" up leaving dots, spots, strands of blurry vitreous; i.e. The "floater". You should have an exam to ensure the incident did not tear the retina, which could lead to a retinal detachment. Wait one year then consider surgery. ...Read more

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I'm seeing weird squiggly lines in my field of vision. Could this be bad?

I'm seeing weird squiggly lines in my field of vision. Could this be bad?

YES!: It could be a retinal problem like a retinal tear or detachment, or an ocular migraine. See an eye doctor and get a dilated retinal exam asap. ...Read more

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Please explain if it is true that women have wider field of vision than men?

Please explain if it is true that women have wider field of vision than men?

Tiny bit: Men have prominent eyebrows while women have more recessed brows. So men have a very small portion of the superior field blocked compared to women. Functionally this is not a meaningful difference but it can be measured. ...Read more

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What could cause someone to see small, bright dots of light in their field of vision?

What could cause someone to see small, bright dots of light in their field of vision?

May be serious: Bright dots are potentially a sign of a retinal tear or detachment and immediate evaluation is indicated. Other possible causes include intraocular inflammation and stimulation of the retina due to normal aging changes of the vitreous gel in the back of the eye. If you are currently seeing bright dots, call an eye doctor immediately. ...Read more

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I am seeing thousands of tiny sparks across my field of vision. What could cause that?

See below: It could be a retinal tear or detachment, an ocular migraine, a vitreous detachment, among other things. You must see an ophthalmologist. Preferably a retina specialist, right away. ...Read more

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Sometimes, usually at night, I see strange colorful specks in front of my field of vision--what causes this?

Sometimes, usually at night, I see strange colorful specks in front of my field of vision--what causes this?

See below: Having these types of symptoms can best be solved by having your doctor perform a thorough evaluation. Only through this type of process can he/she discover what's going on and how best to help you. ...Read more

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What can cause streaky vision? When objects move across my field of vision I see a trail of the object, especially in high contrast areas.

Vitreous floaters: What you describe may be a new object floating in the fluid in the back of your eye. It is important for you to get your eyes looked at to be sue you are not developing a retinal tear or detachment. ...Read more

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Is any drug useful for glaucoma to preserve field of vision?

Is any drug useful for glaucoma to preserve field of vision?

Yes: There are many eye medications that have been shown to be very useful in the management of glaucoma. Unfortunately, it may continue to progress and appropriate treatment may include surgical intervention and/or eye medications. ...Read more

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I'm experiencing "spots" missing in my field of vision. What should I do?

See an eye doctor: Immediately see an ophthalmologist, preferably a retina specialist now. ...Read more

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Gray spot in field of vision can be removed?

Potentially: Most likely a gray spot in your vision is a floater, however there are many other causes and some are vision threatening. The first step is to see an ophthalmologist and be certain of the diagnosis. If it is a floater, most of the time your ophthalmologist will not treat it as they usually become less bothersome over time. There is a procedure that a retina specialist can do to remove floaters. ...Read more

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Why do they do that test for your field of vision?

Why do they do that test for your field of vision?

Many reasons: Field of vision tests are designed to check for abnormalities in your vision that may not be noticeable otherwise. Certain diseases have a particular pattern of field loss (ie glaucoma) and can help with diagnosis. ...Read more

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What can be done about black spots in my field of vision?

Black spots: 99% of the time these are shadows of normal protein in our eyes and when we see them they are called "floaters". But usually they move and do not increase and do not block the vision...Ask the eye doctor to dilate the eyes and confirm that yours are "innocent". They are most frequent in nearsighted patients. Keep us posted... Dr. Sibley ...Read more