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Doctor insights on: Can Low Blood Sugar Cause Blurry Vision

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Blood Sugar (Definition)

The blood sugar concentration or blood glucose level is the amount of glucose (sugar) present in the blood of a human or animal. The body naturally tightly regulates blood glucose levels as a part of metabolic homeostasis. Glucose is the primary source of energy for the body's cells, and blood lipids (in the form of fats and oils) are primarily ...Read more


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If I have had blurry vision for the past few days and my blood sugar has ranged between 299 and 400, what should I do?

If I have had blurry vision for the past few days and my blood sugar has ranged between 299 and 400, what should I do?

See a doctor ASAP: Elevated blood sugar means a person usually has diabetes. Untreated or poorly treated diabetes affects the lens of the eye as well as the retina and can lead to blurry vision. Control of the sugar "usually" improves this, and often corrective lenses (glasses/contacts) are needed. See a doctor and get your sugar better controlled immediately. ...Read more

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Are blurry vision and blood sugar related?

Are blurry vision and blood sugar related?

Yes: Fluctuating blood sugar can cause vision changes (osmotic effect on the eye's lens). Diabetes can lead to blinding conditions if not properly treated - diabetic retinopathy is a leading cuase of retinal blindness in the working-age population. ...Read more

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I was extremely dizzy earlier, with symptoms like hot flashes, blurry vision, lethargy, and mild headache. Blood sugar was 144. What was it?

I was extremely dizzy earlier, with symptoms like hot flashes, blurry vision, lethargy, and mild headache. Blood sugar was 144. What was it?

Drop if blood sugar: If you have diabetes and your blood sugar dropped, it triggers symptoms even though it never drops below normal. Ear right, exercise more and lose weight to relieve the problem of fluctuating Insulin and glucose levels as well as your diabetes risks in the future. ...Read more

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Not sure if really tired or low blood sugar.I was dizzy, anxious, and vision was kind of blurry. Had some ice tea and feel better, what should I do?

Not sure if really tired or low blood sugar.I was dizzy, anxious, and vision was kind of blurry. Had some ice tea and feel better, what should I do?

This type of issue: Needs to be carefully evaluated by your physician and appropriate testing ordered. Is the type of question that can be answered in this forum. Best wishes. ...Read more

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I am experiencing dizziness, fatigue and cloudy or blurred vision (quality: blurring of distant objects, blurring of nearby objects) . My brain MRI report is ok..and all my CBC blood test..sugar test is ok...there was ear drainage many days ago?

I am experiencing  dizziness, fatigue and cloudy or blurred vision (quality: blurring of distant objects, blurring of nearby objects) .
My brain MRI report is ok..and all my CBC blood test..sugar test is ok...there was ear drainage many days ago?

Welk: The ear issue could be a cause of some of your symptoms but does not account for the. Blurred vision. See the eye doctor to examine the eyes. If they are ok return to your doctor for a though exam including mental health exam if nothing medical is found ...Read more

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Can a blood clot cause blurry vision?

Can a blood clot cause blurry vision?

Blood clot: Whether a blood clot causes blurry vision depends on the location of the clot. If it's on the surface of the eye, this will not cause any problems. However if a doctor tells you that you have a clot in one of the blood vessels inside your eye, then your vision could definitely be affected by this. ...Read more

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I did a 20 min intense workout today 11:45-12:30 and after about 1 hour I experienced a blurry vision spot and wasnt able to focus on reading for about 25 minutes. Blood preasure was 137/68 with 81 pulse. Any ideas on cause or steps i should take?

I did a 20 min intense workout today 11:45-12:30 and after about 1 hour I experienced a blurry vision spot and wasnt able to focus on reading for about 25 minutes.  Blood preasure was 137/68 with 81 pulse.  Any ideas on cause or steps i should take?

Have a thorough eval: Good evening. Because the possibilities are numerous, you should really contact your doctor for further eval. Several causes readily come to mind (like a transient ocular migraine), but there are many other possibilities such as a problem with the circulation to your retina. Please contact your doctor. Best of luck. ...Read more

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Lump on the base of my skull and having blurry vision headaches weakness low blood pressure?

Lump on the  base of my skull and having blurry vision  headaches weakness low blood pressure?

See someone now: Please see a physician immediately. Do not hesitate. I have no way of knowing what is wrong with you from your description. Only that you need an immediate and thorough evaluation. ...Read more

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Dim vision, loss of balance, blood rush through head and almost fainting. Was that from low blood sugar?

Dim vision, loss of balance, blood rush through head and almost fainting. Was that from low blood sugar?

Probably not: Low blood sugar usually causes sweating, tremors, headaches, and palpitations. It would need to be very prolonged or severe to cause confusion or loss of consciousness. The symptoms you mention are most often caused by reduced blood flow to the brain, from low blood pressure. You should be checked out by your physician. ...Read more

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Can low blood sugar cause someone to become comatose?

Can low blood sugar cause someone to become comatose?

If low enough: Yes. The brain relies on glucose for fuel. If glucose is too low it can harm the brain in serious ways. ...Read more

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Can low blood sugar cause strange leg weakness?

Can low blood sugar cause strange leg weakness?

It can : Absolutely, as cell function is primarily driven by glucose and if not available, will turn into alternative fuels (such as ketones) which in turn can cause discomfort (legs, stomach, etc). ...Read more

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I didn't eat all day and my blood sugar was 60 with a glucose meter and my heartrate was 153bpm. Could low blood sugar cause the heartrate to rise?

I didn't eat all day and my blood sugar was 60 with a glucose meter and my heartrate was 153bpm. Could low blood sugar cause the heartrate to rise?

Of course it can: yes, low BS will activate the sympathetic nervous system and part of that activation is increased heart rate (in some individuals, not all). ...Read more

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Can low blood sugar cause menstrual cramps?

No evidence for this: Low sugar does not cause menstrual cramps. Menses will often alter blood sugar regulation especially in Insulin dependent diabetics but there is no evidence that cramps are caused by this. ...Read more

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Can low blood sugar cause bad behaviour in children?

Can low blood sugar cause bad behaviour in children?

No: Low blood surgar is dangerous as the brain and then other parts of the body are no longer able to function. Patients may become somewhat irritable and jittery and what they say often fails to make sense. They will often pass out and only if given glucose or glucagon will they survive. This is very dangerous. Make sure the intake of carbohydrate is adequate. Diabetics getting too much insulin same. ...Read more

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Dr. Richard Bensinger
1,704 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


Dr. Kurt Andreason
654 doctors shared insights

Irritated Eyes (Definition)

Dry, irritated eyes is a symptom in which one or both of a person's eyes have a sensation of being too dry. Causes include ...Read more