Blurred vision

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WikiDoc Resources for Blurred vision
Articles
Most recent articles on Blurred vision Most cited articles on Blurred vision Review articles on Blurred vision Articles on Blurred vision in N Eng J Med, Lancet, BMJ
Media
Powerpoint slides on Blurred vision Images of Blurred vision Photos of Blurred vision Podcasts & MP3s on Blurred vision Videos on Blurred vision
Evidence Based Medicine
Cochrane Collaboration on Blurred vision Bandolier on Blurred vision TRIP on Blurred vision
Clinical Trials
Ongoing Trials on Blurred vision at Clinical Trials.gov Trial results on Blurred vision Clinical Trials on Blurred vision at Google
Guidelines / Policies / Govt
US National Guidelines Clearinghouse on Blurred vision NICE Guidance on Blurred vision NHS PRODIGY Guidance FDA on Blurred vision CDC on Blurred vision
Books
Books on Blurred vision
News
Blurred vision in the news Be alerted to news on Blurred vision News trends on Blurred vision
Commentary
Blogs on Blurred vision
Definitions
Definitions of Blurred vision
Patient Resources / Community
Patient resources on Blurred vision Discussion groups on Blurred vision Patient Handouts on Blurred vision Directions to Hospitals Treating Blurred vision Risk calculators and risk factors for Blurred vision
Healthcare Provider Resources
Symptoms of Blurred vision Causes & Risk Factors for Blurred vision Diagnostic studies for Blurred vision Treatment of Blurred vision
Continuing Medical Education (CME)
CME Programs on Blurred vision
International
Blurred vision en Espanol Blurred vision en Francais
Businness
Blurred vision in the Marketplace Patents on Blurred vision
Experimental / Informatics
List of terms related to Blurred vision

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Phone:617-525-6884

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Overview

• Common ophthalmic symptom
• Vision is less sharp and an inability to see small details exists
• Alterations of the optical surfaces or media for which the visual axis travels typically cause blurred vision
• Refractive errors cause the majority of blurred vision complaints.
• Most can be corrected with glasses

Differential Diagnosis

• Acute angle-closure glaucoma
• Botulism
• Carbon dioxide narcosis
• Cataracts
• Central nervous system (CNS) abnormality
• Chiasma syndrome
• Congenital disorders
• Conjunctivitis
• Corneal irregularity or abrasion
• Diabetic Retinopathy
• Drug side effects:

  • Anticholinergics
  • Antihistamines
  • Chloroquine
  • Clominphene
  • Cycloplegic
  • Ethambutol
  • Glycosides
  • Guanethidine
  • Indomethacin]
  • Phenothiazines
  • Methanol
  • Phenothiazines
  • Phenylbutazone
  • Quinine sulfate
  • Reserpine
  • Thiazide diuretics

• Dry eye, poor tear film
• Extraocular muscle paralysis
• Fatigue
• Floaters
• Glaucoma
• Head trauma
• Hypercoagulation
• Hyperglycemia
• Hyperviscosity
• Infection, inflammation or injury of cornea
• Macular disease
• Migraine
• Multiple Sclerosis
• Myasthenia
• Ocular media opacity
• Periphlebitis retinae
• Presbyopia
• Prolonged exposure to the outdoors
• Refractive error
• Retina infections:

  • Fungal
  • Parasites
  • Viral

• Retinal detachment
• Seizure disorders
• Temporal arteritis
• Trachoma
• Vasculopathy ^{[1] [1]}

Diagnosis

History and Symptoms

• Detailed history important, including the following:

  • Duration of symptoms
  • Progression of symptoms
  • Near or far sighted
  • Permanent or transient
  • Binocular or uniocular

• Past medical history
• Associated symptoms

Physical Examination

Appearance of the Patient

Eyes

• Complete ophthalmologic exam including:

  • Slit lamp examination
  • Dilated fundus exam
  • Visual acuity
  • Improvement of vision with pinhole
  • Dry or irritated eyes

Ear Nose and Throat

Palpate the temporal area to determine if there is pain in the temporal area to suggest temporal arteritis

• Neurologic exam if necessary

Laboratory Findings

• Complete blood count (CBC)
• Fasting or random blood sugar

  • Repeat glucose (if initial glucose is elevated)

• Prothrombin time (PT)
• Partial thromboplastin time (PTT)

Electrolyte and Biomarker Studies

Check erythrocyte sedimentation rate to rule out temporal arteritis

Other Imaging Findings

• Electroencephalogram (EEG) if seizures are suspected

Treatment

• Treat underlying pathologies
• For dry eyes, lubrication
• Appropriate treatment for hyperviscosity

Pharmacotherapy

Acute Pharmacotherapies

• Antiseizure prophylaxis (seizure disorders)

Surgery and Device Based Therapy

• Glasses or contact lenses for blurred vision due to refractive errors
• Possible surgical repair for retinal detachment
• Temporal artery biopsy may be needed

References

Acknowledgements

The content on this page was first contributed by Editor-In-Chief: C. Michael Gibson, M.S., M.D. [3] Phone:617-525-6884

List of contributors:

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Suggested Reading and Key General References

Suggested Links and Web Resources

For Patients

v • d • e WikiDoc Research Resources for Blurred vision (Click show to right to view)
Articles on Blurred vision	Most recent articles on Blurred vision • Most cited articles on Blurred vision • Review articles on Blurred vision • Articles on Blurred vision in N Eng J Med, Lancet, BMJ
Media (Slides, Video, Images, MP3) on Blurred vision	Powerpoint slides on Blurred vision • Images of Blurred vision • Photos of Blurred vision • Podcasts & MP3s on Blurred vision • Videos on Blurred vision
Evidence Based Medicine Regarding Blurred vision	Cochrane Collaboration on Blurred vision • Bandolier on Blurred vision • TRIP on Blurred vision
Cost Effectiveness of Blurred vision	Cost Effectiveness of Blurred vision
Clinical Trials Involving Blurred vision	Ongoing Trials on Blurred vision at Clinical Trials.gov • Trial results on Blurred vision • Clinical Trials on Blurred vision at Google
Guidelines / Policies / Government Resources (FDA/CDC) Regarding Blurred vision	US National Guidelines Clearinghouse on Blurred vision • NICE Guidance on Blurred vision • NHS PRODIGY Guidance • FDA on Blurred vision • CDC on Blurred vision
Textbook Information on Blurred vision	Books and Textbook Information on Blurred vision
Pharmacology Resources on Blurred vision	Dosing of Blurred vision • Drug interactions with Blurred vision • Side effects of Blurred vision • Allergic reactions to Blurred vision • Overdose information on Blurred vision • Carcinogenicity information on Blurred vision • Blurred vision in pregnancy • Pharmacokinetics of Blurred vision •
Genetics, Pharmacogenomics, and Proteinomics of Blurred vision	Genetics of Blurred vision • Pharmacogenomics of Blurred vision • Proteomics of Blurred vision
Newstories on Blurred vision	Blurred vision in the news • Be alerted to news on Blurred vision • News trends on Blurred vision
Commentary on Blurred vision	Blogs on Blurred vision
Patient Resources on Blurred vision	Patient resources on Blurred vision • Discussion groups on Blurred vision • Patient Handouts on Blurred vision • Directions to Hospitals Treating Blurred vision • Risk calculators and risk factors for Blurred vision
Healthcare Provider Resources on Blurred vision	Symptoms of Blurred vision • Causes & Risk Factors for Blurred vision • Diagnostic studies for Blurred vision • Treatment of Blurred vision
Continuing Medical Education (CME) Programs on Blurred vision	CME Programs on Blurred vision
International Resources on Blurred vision	Blurred vision en Espanol • Blurred vision en Francais
Business Resources on Blurred vision	Blurred vision in the Marketplace • Patents on Blurred vision
Informatics Resources on Blurred vision	List of terms related to Blurred vision

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Acknowledgement and Attribution Regarding Sources of Content

Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .