Stargardt's disease

Stargardt's disease, or fundus flavimaculatus, has been vastly reported as an autosomal recessive genetic form of juvenile macular degeneration that causes progressive vision loss, although several dominant pedigrees have been reported. It is the most common inherited juvenile macular degeneration.
See more at Wikipedia.org...

the most common form of inherited juvenile macular degeneration, characterized by development of irregularly-shaped yellowish-white flecks or spots in the macula area. Eventually leads to impairment of color vision and legal blindness.
For more information, See Types of Juvenile Macular Degeneration" in the MD Support Library.