Stargardt disease affects around one in 6,500 people ... which makes it difficult to recognize faces and read. The symptoms usually begin before the age of 20, often in childhood.

In this group of patients, the high intake of vitamin A was also associated with a worst clinical course of the disease in terms of visual acuity. Conversely, in RP patients vitamin A intake was ...

The study populations comprised 24 patients with a STGD [12 M, 12 F; median age: 34 years (range: 13–64)] and 56 patients with RP [23 M, 33 F; median age: 45 years (range: 14–85)] referring to ...