Vision Disorders - Symptoms
The primary symptom of any vision disorder is the inability to see objects clearly. Objects near by or far away will seem blurry to a person with farsightedness or nearsightedness. Objects at almost any distance will seem blurry to a person with astigmatism.
Blurry vision may lead to other problems. People who have trouble seeing clearly may begin to squint in order to see better. Constant squinting can lead to discomfort, headaches, and eyestrain.