Any sudden loss of vision or loss of a portion of the visual field could signal a serious problem. This should be checked as
soon as possible. If there is rapid onset of pain associated with decreased vision and redness, one should be checked as
soon as possible, preferably the same day. Other less urgent signs are crossing of the eyes, double vision, flashes of
light, or the occurrence of or an increase in floaters. These may not be of as urgent a nature, but should still be checked
by an ophthalmologist.
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