Eye-Tracking glasses may reveal how children with cerebral palsy coordinate gaze and hands

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria General Inclusion Criteria Children aged 6-12 years * Ability to understand simple instructions required for the study procedures and perform structured visual and bimanual tasks * For children who routinely wear glasses or contact lenses, ability to view near visual stimuli and task materials with their habitual vision correction * Written informed consent provided by a parent or legally authorized representative, with the child providing assent after receiving an age- and developmentally appropriate explanation of the study Cerebral Palsy Group * Diagnosis of cerebral palsy confirmed by a pediatric physiatrist * Manual Ability Classification System (MACS) level I-III * Ability to grasp or manipulate task materials with at least one hand and attempt bimanual task performance Typically Developing Group * Typical developmental history based on parent report and confirmation by the research team * No history of neurological disorders, including cerebral palsy, or musculoskeletal conditions affecting upper-limb function * No diagnosis of a neurodevelopmental disorder that may affect task performance, such as attention-deficit/hyperactivity disorder, autism spectrum disorder, or intellectual disability Exclusion Criteria * Visual impairment that prevents the child from adequately viewing near visual stimuli or task materials, even with habitual vision correction * Severe strabismus, nystagmus, or another ophthalmologic condition judged likely to substantially compromise stable eye-tracking data collection * Severe cognitive, communication, or behavioral difficulties that prevent adequate understanding or performance of the study tasks * Severe upper-limb joint contracture, pain, fracture, or another musculoskeletal condition that prevents safe performance of the bimanual tasks * Uncontrolled epilepsy, acute illness, unstable medical condition, or any other condition judged to make study participation unsafe