Blistering distal dactylitis is a cutaneous condition characterized by tense superficial bullae occurring on a tender erythematous base over the volar fat pad of the phalanx of a finger or thumb. : 262  The most common organism responsible for this is Beta-hemolytic Streptococci. See also
List of cutaneous conditions


== References ==
Stargardt disease  is the most common inherited single-gene retinal disease. In terms of the first description of the disease, it follows an autosomal recessive inheritance pattern, which has been later linked to bi-allelic ABCA4 gene variants (STGD1). However, there are Stargardt-like diseases with mimicking phenotypes that are referred to as STGD3 and STGD4, and have a autosomal dominant inheritance due to defects with ELOVL4 or PROM1 genes, respectively. It is characterized by macular degeneration that begins in childhood, adolescence or adulthood, resulting in progressive loss of vision. Signs and symptoms
The presentation usually occurs in childhood or adolescence, though there is no upper age limit for presentation and late-onset is possible. The main symptom is loss of visual acuity, uncorrectable with glasses. This manifests as the lack of the ability to see fine details when reading or viewing distant objects. Symptoms typically develop before age 20 (median age of onset: ~17 years old), and include: wavy vision, blind spots, blurriness, loss of depth perception, sensitivity to glare, impaired colour vision, and difficulty adapting to dim lighting (delayed dark adaptation). There is a wide variation between individuals in the symptoms experienced as well as the rate of deterioration in vision. Vision loss can be attributed to buildup of byproducts of vitamin A in photoreceptor cells and Peripheral vision is usually less affected than fine, central (foveal) vision. Genetics
Historically from Stargardt’s first description of his eponymous disease until recently, the diagnosis was based on looking at the phenotype using examination and investigation of the eye.