Autozomálně recesivní
Caused by changes in IMPG1, which encodes a proteoglycan of the matrix surrounding photoreceptors. Changes in one copy and in both copies have been linked to retinitis pigmentosa, and single changes can also cause vitelliform macular dystrophy.
Příznaky a projevy
Night blindness followed by gradual loss of side (peripheral) vision, typical of retinitis pigmentosa. Some people with IMPG1 changes have early macular involvement, or develop a macular dystrophy (vitelliform or pattern dystrophy) instead. Age at onset and rate of progression vary.
Co se diagnózou změní
Regular eye assessment, low-vision aids and support services help with daily life. Genetic counselling is offered, and carrier testing of relatives depends on the inheritance pattern in the family.
Analyzované geny
Zahrnuje 1 příbuzný podtyp ↓Skrýt podtypy ↑
- vitelliform macular dystrophy 4
