Vision Changes
Vision changes range from minor refraction issues to sight-threatening emergencies. Sudden changes — especially with pain, headache, or weakness — should be evaluated immediately.
Table of Contents
Quick Facts
- ICD-10: H53
When to Call 911 or Seek Same-Day Care
Seek emergency care for:
- Sudden loss of vision in one or both eyes
- Curtain or shadow over part of vision (retinal detachment)
- Vision changes with weakness, numbness, slurred speech (stroke)
- Severe eye pain with vision changes
- Vision changes with sudden severe headache
- Halos around lights with eye pain
- Flashing lights and many new floaters
Common Causes
Gradual
- Refractive errors (myopia, hyperopia, presbyopia)
- Cataracts
- Macular degeneration
- Glaucoma
- Diabetic retinopathy
Sudden
- Retinal detachment
- Retinal artery or vein occlusion
- Optic neuritis
- Stroke affecting visual pathways
- Acute angle-closure glaucoma
- Migraine with aura
- Severe hyperglycemia (blurring)
Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition. If you are experiencing a medical emergency, call your local emergency number immediately.
References
- American Academy of Ophthalmology. Vision Changes Information.