What is the history of Best Vitelliform Macular Dystrophy?

Best Vitelliform Macular Dystrophy, also known as Best disease, was first described in 1905 by German ophthalmologist Friedrich Best, who identified its characteristic egg-yolk-like lesion in multiple generations of a single family. Since its discovery, medical understanding has evolved from simple clinical observation to the identification of the BEST1 gene, transforming it from an idiopathic condition into a well-defined autosomal dominant retinal disorder.

Who first discovered Best Vitelliform Macular Dystrophy?

The condition is named after Friedrich Best, who conducted a landmark study of an eight-generation family in Germany. He noted that the disease followed an autosomal dominant inheritance pattern, a revolutionary observation for ophthalmology at the time. His initial description of the "vitelliform" (egg-yolk) appearance remains the hallmark diagnostic feature of Best Vitelliform Macular Dystrophy today.

How has our understanding of the condition evolved?

For most of the 20th century, Best Vitelliform Macular Dystrophy was categorized primarily by its clinical appearance during fundus examinations. The introduction of electro-oculography (EOG) in the 1960s provided a major milestone, allowing clinicians to identify the subnormal light rise in the EOG, which remains a diagnostic gold standard. The most significant shift occurred in 1998, when researchers identified mutations in the BEST1 gene, located on chromosome 11, which encodes the protein bestrophin-1.

What are the major milestones in research and technology?

• 1905: Friedrich Best publishes his initial findings on the hereditary nature of the disease.


• 1960s: The EOG becomes a critical diagnostic tool for confirming Best Vitelliform Macular Dystrophy.


• 1998: The BEST1 gene is mapped and identified, enabling molecular genetic testing.


• 2000s–Present: Advanced imaging, such as Optical Coherence Tomography (OCT), allows for the precise visualization of subretinal fluid and deposits in Best Vitelliform Macular Dystrophy.

How has patient advocacy changed the landscape?

Historically, patients with Best Vitelliform Macular Dystrophy were often misdiagnosed or lacked support due to the condition's rarity. Today, platforms like DiseaseMaps.org allow patients to connect, share experiences, and participate in natural history studies. With six members in our community currently sharing their journey, the collective knowledge of the patient experience has become as vital as clinical research in guiding future therapeutic development.

Next steps

• Consult a retina specialist or ophthalmic geneticist for a formal diagnosis.


• Undergo genetic testing to confirm the specific BEST1 mutation.


• Join the DiseaseMaps.org community to connect with others living with Best Vitelliform Macular Dystrophy.


• Monitor vision changes using an Amsler grid at home to detect early progression.

Medical disclaimer: This information is for educational purposes only and does not constitute professional medical advice, diagnosis, or treatment.

References

• NIH Genetic and Rare Diseases Information Center (GARD): Best vitelliform macular dystrophy.


• OMIM (Online Mendelian Inheritance in Man): Bestrophinopathy; BEST1.


• Orphanet: Best vitelliform macular dystrophy.


• American Academy of Ophthalmology (AAO): Best Disease Overview.