Begins with the appearance of brown cataracts severe myopia. If you used to be hyperopia, and the patient used the glasses for close range, in which case he may withdraw from the score.
Occur gradually over the life staining of the nucleus. First, the nucleus becomes gray, then yellow, red, and gradually becomes red-brown. At the same time the core is sealed.
Nuclear cataracts are usually bilateral, but sometimes occur with one hand. Nuclear cataract progresses slowly. Deteriorating distance vision, then there is deterioration in vision and near objects. Brown rarely cataract matures.