Familial drusen, also known as Doyne Honeycomb Retinal Dystrophy or Malattia Leventinese, is a rare genetic eye condition that affects the retina—the light-sensitive tissue at the back of the eye. The hallmark of this condition is the early appearance of drusen, which are small, yellow-white deposits that accumulate beneath the retina. Unlike age-related macular degeneration (AMD), where drusen typically appear later in life, familial drusen often begin to form in a person's twenties or thirties.
These deposits tend to form in a distinctive radiating or "honeycomb" pattern around the macula, the central part of the retina responsible for sharp, detailed vision. In the early stages, many individuals with familial drusen experience no noticeable symptoms. However, as the condition progresses and the drusen multiply or grow larger, vision changes can occur. Symptoms may include blurry or distorted vision, difficulty seeing in low light, and challenges with reading or recognizing faces. In advanced stages, central vision loss can occur, though peripheral (side) vision usually remains intact.
Diagnosis typically involves a comprehensive eye examination by an ophthalmologist. Specialized imaging techniques, such as Optical Coherence Tomography (OCT) and fundus autofluorescence, allow doctors to visualize the drusen and monitor their progression. Because familial drusen is an inherited condition, genetic testing can confirm the diagnosis by identifying specific gene mutations.
While there is currently no cure for familial drusen, regular monitoring is essential. Patients are encouraged to maintain a healthy lifestyle, protect their eyes from UV light, and use visual aids if needed. If you or a family member have been diagnosed with familial drusen, it is important to consult your healthcare provider or a retinal specialist to discuss a personalized management plan.