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  2. Fluorescent lamps and health - Wikipedia

    en.wikipedia.org/wiki/Fluorescent_lamps_and_health

    One paper suggested that in rare cases, fluorescent lighting can also induce depersonalization and derealization; subsequently, it can worsen depersonalization disorder symptoms. [27] The charity Migraine Action Association reported concerns from members that CFL bulbs can cause migraines, [28] and there are many anecdotal reports of such ...

  3. Scintillating scotoma - Wikipedia

    en.wikipedia.org/wiki/Scintillating_scotoma

    Many variations occur, but scintillating scotoma usually begins as a spot of flickering light near or in the center of the visual field, which prevents vision within the scotoma area. It typically affects both eyes, as it is not a problem specific to one eye. [5] [6] The affected area flickers but is not dark. It then gradually expands outward ...

  4. Vitreous hemorrhage - Wikipedia

    en.wikipedia.org/wiki/Vitreous_hemorrhage

    Vitreous hemorrhage is diagnosed by identifying symptoms, examining the eye, and performing tests to identify the cause. Some common tests include: Examination of the eye with a microscope; Pupil dilation and examination; An ultrasound examination may be used if the doctor does not have a clear view of the back of the eye

  5. Blurred vision - Wikipedia

    en.wikipedia.org/wiki/Blurred_vision

    Optic neuritis: Inflammation of the optic nerve from infection or multiple sclerosis may cause blurring of vision. [14] There may be pain while moving the eye or touching it through the eyelid. [14] Stroke or transient ischemic attack; Brain tumor; Toxocara: A parasitic roundworm that can cause blurred vision. [15] Bleeding into the eye

  6. Photopsia - Wikipedia

    en.wikipedia.org/wiki/Photopsia

    The retina lines the inside of the eye. It is light-sensitive and communicates visual messages to the brain. If the retina detaches, it moves and shifts from its normal position. This can cause photopsia, but can also cause permanent vision loss. Medical attention is needed to prevent vision loss.

  7. Why astigmatism causes blurry vision, especially at night - AOL

    www.aol.com/news/why-astigmatism-causes-blurry...

    Blurry vision and headaches are symptoms of astigmatism. Astigmatism, a disorder that affects how the eyes focus light, can be exacerbated at night. Blurry vision and headaches are symptoms of ...