Question: How many people are affected by lattice corneal dystrophy type I ?
Answer: Lattice corneal dystrophy type I is one of the most common disorders in a group of conditions that are characterized by protein deposits in the cornea (corneal dystrophies); however, it is still a rare condition. The prevalence of lattice corneal dystrophy type I is unknown.
Source: GHR

Question: What are the genetic changes related to lattice corneal dystrophy type I ?
Answer: Lattice corneal dystrophy type I is caused by mutations in the TGFBI gene. This gene provides instructions for making a protein that is found in many tissues throughout the body, including the cornea. The TGFBI protein is part of the extracellular matrix, an intricate network that forms in the spaces between cells and provides structural support to tissues. The protein is thought to play a role in the attachment of cells to one another (cell adhesion) and cell movement (migration). The TGFBI gene mutations involved in lattice corneal dystrophy type I change single protein building blocks (amino acids) in the TGFBI protein. Mutated TGFBI proteins abnormally clump together and form amyloid deposits. However, it is unclear how the changes caused by the gene mutations induce the protein to form deposits.
Source: GHR

Question: Is lattice corneal dystrophy type I inherited ?
Answer: This condition is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In most cases, an affected person has one parent with the condition.
Source: GHR

Question: What are the treatments for lattice corneal dystrophy type I ?
Answer: These resources address the diagnosis or management of lattice corneal dystrophy type I: - American Foundation for the Blind: Living with Vision Loss - Genetic Testing Registry: Lattice corneal dystrophy Type I - Merck Manual Home Health Edition: Diagnosis of Eye Disorders: Slit-Lamp Examination These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Therapy - Surgery and Rehabilitation - Genetic Counseling - Palliative Care
Source: GHR