Symptom: Blurred vision
Blurred vision: Blurriness of vision or images.
Introduction: Blurred vision needs to be distinguished from other visual symptoms. Double vision (diplopia) is a specific visual symptom usually distinguished from blurred vision. It is important to determine whether only one or both eyes are affected (unilateral blurred vision versus bilateral blurred vision). Another distinction is whether the blurred vision occurs continually or only intermittently. Any type of blurry vision needs prompt professional medical diagnosis and treatment.
Detailed cause information for symptom: Blurred vision:
Medical articles on symptoms: These general medical articles may be of interest:
- Symptoms of the Silent Killer Diseases
- Symptoms and Medical Malpractice
- Medical mistakes and their rates, causes and prevention
- Deaths and sudden death
Types of Blurred vision: visual halo (7), cloudy vision (4)
Blurred vision type of: Vision distortion (91), Impaired vision (92)
Symptoms: symptom center, symptom groups, symptom descriptions
Possible causes of symptom: Blurred vision: The following medical conditions are some of the possible causes of Blurred vision as a symptom. There are likely to be other possible causes, so ask your doctor about your symptoms.
- Refractive eye conditions
- Myopia
- Near-sightedness
- Presbyopia
- Far-sightedness
- Uncorrected vision disorder
- Wrong eyeglasses
- Eye irritation (see Eye symptoms)
- Dry eyes - may cause blurred vision; see the many causes of dry eyes
- Eye conditions
- Diabetes - due to diabetic lens osmosis or diabetic retinopathy in diabetes and diabetes-related conditions:
- Pregnancy
- Migraine - causing visual effects prior to onset of the migraine.
- Anemia - see also types of anemia
- Certain kidney conditions
- Certain nerve conditions
- Certain brain conditions
- Temporal arteritis
- Some possible causes of intermittent blurred vision or episodes of blurred vision including:
- Diabetic lens osmosis - blurred vision due to diabetes, DKA, HHNS, etc.
- Glaucoma
- Acute angle glaucoma - usually unilateral episodic blurring.
- Multiple sclerosis
- Transient ischemic attacks - i.e. multiple TIAs each causing blurring of vision.
- Blood circulation disorders
- Carotid insufficiency
- Amaurosis fugax
- Carotid embolism
- Atherosclerotic emboli
- Vertebrobasilar insufficiency - causing episodic blurring or double vision.
- Visual hallucinations (see Vision distortion)
- Amphetamine intoxication - in high doses.
- Certain drugs
- Digitalis toxicity
- See also causes of double vision or other vision symptoms
Medications or substances causing Blurred vision: The following drugs, medications, substances or toxins are some of the possible causes of Blurred vision as a symptom. This list is incomplete and various other drugs or substances may cause your symptoms. Always advise your doctor of any medications or treatments you are using, including prescription, over-the-counter, supplements, herbal or alternative treatments.
- Certain anticholinergics
- Certain antihypertensives
- Certain psychotropic drugs
- Digitalis
- Certain drugs that may trigger amaurosis fugax
- Certain medication causes of migraine
- Certain drugs exacerbate low-grade glaucoma leading to visual symptoms:
- Corticosteroid drugs
- Cortisone
- Certain antidepressants
- Certain anti-agitation medications
- Haldol
- Oral contraceptives
- Certain heart medications
- Certain Parkinson's disease medications
- See also drugs causing glaucoma
Conditions listing symptoms: Blurred vision: The following list of conditions have 'Blurred vision' or similar listed as a symptom in our database. This computer-generated list may be inaccurate or incomplete. Always seek prompt professional medical advice about the cause of any symptom.
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Conditions listing complications: Blurred vision: The following list of conditions have 'Blurred vision' or similar listed as a complication in our database. The distinction between a symptom and complication is not always clear, and conditions mentioning this symptom as a complication may also be relevant. This computer-generated list may be inaccurate or incomplete. Always seek prompt professional medical advice about the cause of any symptom.
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Last revised: Nov 21, 2003
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