They also can be a sign that the macula is starting to degenerate. The first thing many people notice is blurring in one or both eyes. The blurring may be so little that you might think you need new glasses. Reading may be more difficult. New glasses may help a little but won't take care of the problem because the problem is in the macula.
Glasses are like the lens on a camera, and the retina is like the film.
As time goes on, your central vision may become more hazy or darkened. Straight lines such as the edges of doors and windows may look bent or crooked. Any of the symptoms can be gradual or sudden. Sudden changes are more likely to occur with the wet type, and may be more likely to need immediate treatment. A complete eye exam will be done.