Cause fuzzy vision is a condition caused by a variety of factors, including eye strain, dry eyes, and certain medications. BLEAR is one of the symptoms of this condition, which is characterized by blurred or hazy vision. It can also be caused by refractive errors, such as nearsightedness or farsightedness, or by cataracts or glaucoma. Treatment for cause fuzzy vision depends on the underlying cause, but may include lifestyle changes, such as wearing glasses or contact lenses, or taking medications.