[Sorsby's fundus dystrophy: a literature review]

Area of Science:

• Ophthalmology
• Genetics
• Molecular Biology

Context:

• Sorsby's fundus dystrophy (SFD) is an autosomal dominant macular dystrophy.
• SFD shares clinical similarities with age-related macular degeneration.
• The genetic basis of SFD has recently been elucidated.

Purpose:

• To review the clinical and molecular aspects of Sorsby's fundus dystrophy.
• To highlight the identification of the causative gene in SFD.
• To emphasize the diagnostic and therapeutic implications of genetic findings.

Summary:

• SFD presents with macular lesions and peripheral chorioretinal dystrophy, leading to vision loss.
• The disease typically manifests in the fourth or fifth decade of life.
• Mutations in the tissue inhibitor of metalloproteinases-3 (TIMP 3) gene are identified as the cause of SFD.

Impact:

• TIMP 3 gene analysis facilitates accurate SFD diagnosis.
• Genetic identification paves the way for developing therapeutic strategies.
• Understanding the molecular basis of SFD aids in differentiating it from similar conditions.