Corneal Dystrophy can affect the cornea, or a part of the cornea, through the development of a cloudy material. There are many different types of corneal dystrophies. According to the National Eye Institute, there are currently over twenty recognized forms of corneal dystrophy.
Types of Corneal Dystrophy
There are three main classifications of corneal dystrophy: posterior, stromal, or anterior. These classifications correspond to the layer of the cornea that is primarily affected. Posterior corneal dystrophies include: fuchs endothelial dystrophy, posterior polymorphous dystrophy, and congenital hereditary corneal dystrophy.
The stromal layer is the central layer of the cornea. It is affected by the following: granular corneal dystrophy type I and II, lattice corneal dystrophy type I and II, and gelatinous droplike corneal dystrophy (sometimes called familial subepithelial corneal dystrophy), macular corneal dystrophy, and schnyder crystalline corneal dystrophy.
The outer layers of the the cornea are called the anterior layers. They are made up of the Bowman membrane, the epithelial basement membrane, and the epithelium. These layers are affected by the following types of corneal dystrophy: epithelial basement membrane dystrophy, meesmann corneal dystrophy, lisch corneal dystrophy, reis-buckler corneal dystrophy, and thiel-behnke corneal dystrophy.
Symptoms of Corneal Dystrophy
The symptoms of corneal dystrophy can vary greatly depending of the type. Some symptoms can include vision problems or eye pain. In severe cases, loss of vision can occur. In general, corneal dystrophy usually occurs slowly. It is caused by genetics and has not been linked to any external factors.
If someone in your family has been diagnosed with corneal dystrophy, you should have an eye exam conducted. Make sure to discuss corneal dystrophy with your eye care professional. Make an appointment at one of our Palm Beach Eye Center locations today.
Source: Corneal Dystrophy Foundation