What is (are) Norrie disease ?
Norrie disease is an inherited eye disorder that leads to blindness in male infants at birth or soon after birth. Additional symptoms may occur in some cases, although this varies even among individuals in the same family. Most affected individuals develop sensorineural hearing loss and many exhibit cognitive abnormalities such as developmental delays, behavioral issues, or psychotic-like features. Norrie disease is caused by mutations in the NDP gene. It is inherited in an X-linked recessive pattern. Treatment is directed toward the specific symptoms present in each individual. The coordinated efforts of a team of specialists, including pediatricians, ophthalmologists, and audiologists may be needed. Early intervention and special education services are important to ensure that children with Norrie disease reach their full potential.