Ultimately, glaucoma can lead to complete vision loss. Depending on what type of glaucoma a person has, this can occur slowly or suddenly. With treatment, doctors can slow glaucoma's progression. This can add years of sight for individuals who would have otherwise lost their vision. Unfortunately, if an acute glaucoma attack causes sudden vision loss, treatment may not be able to restore it. Some people's vision loss appears as darkness while others have cloudy or extremely blurry vision.

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