Adolescent years

As the disease continues to progress through adolescent years, other symptoms may become apparent:

  • Vision deterioration
  • Progressive dementia
  • Decline in language ability
  • Difficulty eating
  • Loss of motor function

Challenges with cognitive and motor skills may be perceived as behavioral issues such as hyperactivity, anxiety, and obsessive activities. The child’s description of vision loss associated with CLN5 may be interpreted as hallucinations by parents or caregivers.