These children may squint, lower their head, avoid light by turning away, or resist participating in outdoor activities. When one eye is affected more than the other, an ophthalmologist may recommend a trial of patching the stronger eye, since the visual loss may be due to amblyopia. Some feeding issues are associated with hormonal problems. Lack of interest in eating may be due to absent or diminished sense of smell and taste. Children with ONH may have very restricted food preferences.
Some children exhibit excessive lip smacking while eating.
The child with associated central nervous system problems may be easily distracted, quickly frustrated and act in a disorganized or an impulsive way. Conditions Associated With ONH Associated brain and hormonal abnormalities are common in children with nystagmus and bilateral severe vision loss, and are less common in cases where vision loss is mild or unilateral. Associated midline brain anomalies can be identified by either an MRI or CT scan. All mothers of children with ONH were drug users during pregnancy. Each child should receive medical monitoring and comprehensive, ongoing, functional and educational assessment.