• Why does my vision alternate like a dimmer switch?


    Question:

    I am experiencing my vision alternating between lighter and darker, especially when writing. It seems like there is a dimmer switch on the lights that someone is constantly turning up and down. What could this be?


    Answer:

    It is impossible to give you a diagnosis without a thorough eye exam. I would urge you to make an appointment with an ophthalmologist. This could be anything from an atypical migraine to something else of vascular origin.


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