Lattice Dystrophy
Overview
Lattice dystrophy gets its name from an accumulation of abnormal protein fibers throughout the middle and anterior stroma, which makes up 90 percent of the cornea's thickness. A doctor will see these deposits in the stroma as clear, comma-shaped overlapping dots and branching filaments, creating a lattice effect. Over time, the lattice lines will grow opaque and involve more of the stroma. Gradually they will cause the cornea to cloud and reduce vision.
Warning Signs & Symptoms
Lattice Dystrophy alters the cornea's normal curvature, causing temporary vision problems. It also exposes the nerves that line the cornea, causing severe pain, even when blinking.
Treatment/Procedures
To ease the pain of blinking, a doctor may prescribe eye drops and ointments to reduce the friction on the eroded cornea. In some cases, an eye patch may be used to immobilize the eyelids. With effective care, these erosions usually heal within three days, although occasional sensations of pain may occur for the next six to eight weeks. Some people with Lattice Dystrophy will have scarring, resulting in a haze on the cornea that can greatly obscure vision. In this case, a corneal transplant may be needed.
Prevention
There are no preventive measures for Lattice Dystrophy.
Rehabilitation
If a corneal transplant is required, the patient must wear an eye patch for a certain period of time, which protects the new cornea from injury. Eye drops are required to prevent rejection of the transplant, and full vision recovery may take up to a year.
