At what stage does night blindness typically start in individuals with Usher's Syndrome Type 3?

Individuals with Usher's Syndrome Type 3 typically experience the onset of night blindness during puberty. This condition is a genetic disorder that affects both hearing and vision, and the vision impairment particularly progresses over time. In Type 3, the initial symptoms related to vision often manifest as nyctalopia (night blindness) during the adolescent years, specifically around the time of puberty.

The timing of this symptom is significant as it aligns with developmental changes that occur during this life stage, where the decline in rod cell function, which is responsible for night vision, becomes more apparent. As the disease progresses, individuals may also experience further vision loss, but the change in night vision is one of the first indications of the retinal degeneration associated with Usher's Syndrome Type 3, making puberty a critical period for the recognition of these symptoms.