Congenital Stationary Night Blindness

Congenital Stationary Night Blindness (csnb) in Briards, also called hereditary retinal dystrophy, is an inherited disease caused by a defect in the gene RPE65.

The symptoms include night blindness and a loss of vision in daylight that can vary between individual dogs.

Possible Test Results :

• Clear
• Carrier
• Affected
• Hereditary Clear
• Hereditary Carrier
• Hereditary Affected

Congenital Stationary Night Blindness is a mandatory test for the following breeds :

• Briard