What causes photophobia (sensitivity to light) and blurred vision?

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Differential Diagnosis for Glare with Bright Lights and Blurred Vision

  • Single Most Likely Diagnosis
    • Cataracts: The most common cause of glare and blurred vision, especially in older adults, due to the clouding of the lens in the eye.
  • Other Likely Diagnoses
    • Dry Eye Syndrome: Inadequate tear production or poor tear quality can cause blurred vision and sensitivity to light.
    • Refractive Errors (e.g., Myopia, Hyperopia, Astigmatism): Uncorrected or under-corrected refractive errors can lead to blurred vision and may worsen with bright lights.
    • Presbyopia: Age-related decline in near vision that can also affect vision in bright light conditions.
  • Do Not Miss Diagnoses
    • Acute Angle-Closure Glaucoma: A medical emergency that can cause severe eye pain, blurred vision, and sensitivity to light, requiring immediate treatment.
    • Retinal Detachment: A condition where the retina separates from the back of the eye, causing sudden blurred vision, floaters, and flashes of light.
    • Optic Neuritis: Inflammation of the optic nerve that can cause blurred vision, pain, and sensitivity to light, often associated with multiple sclerosis.
  • Rare Diagnoses
    • Keratoconus: A progressive thinning of the cornea that can cause blurred vision, glare, and sensitivity to light.
    • Corneal Dystrophies: A group of rare, genetic disorders that affect the cornea and can cause blurred vision and sensitivity to light.
    • Chronic Uveitis: Inflammation of the uvea, the middle layer of the eye, which can cause blurred vision, sensitivity to light, and floaters.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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