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Eye disorders in neurofibromatosis (NF1)
Rajko Kordić1, Zlatko Sabol, Branimir Cerovski
1University Department of Ophthalmology, Clinical Hospital Center, Rebro, Zagreb, Croatia.
Collegium Antropologicum
|October 1, 2005
Summary
Neurofibromatosis type 1 (NF1) eye disorders are common, with Lisch nodules (Iris hamartomas) affecting 78% of children. These nodules are a reliable diagnostic sign for NF1 in pediatric patients.
Area of Science:
- Ophthalmology
- Genetics
- Pediatrics
Background:
- Neurofibromatosis type 1 (NF1) is an autosomal dominant genetic disorder.
- NF1 presents with highly variable and unpredictable clinical manifestations.
- Ophthalmologic complications are a significant aspect of NF1.
Purpose of the Study:
- To document and analyze the spectrum of eye disorders in pediatric patients with NF1.
- To determine the incidence of specific ocular abnormalities in NF1.
- To evaluate the diagnostic utility of ocular findings in childhood NF1.
Main Methods:
- A longitudinal study of 132 pediatric patients (age 0-16 years) diagnosed with NF1.
- Patients underwent repeated ophthalmologic examinations over a 15-year period.
- Data collection focused on the presence and type of ocular disorders.
Main Results:
- Lisch nodules (Iris hamartomas) were the most frequent ocular finding, observed in 78% of patients.
- Other common eye disorders included optic gliomas (18.9%), optic disc abnormalities (16.7%), and oculomotor disorders (15.9%).
- Hyperthelorism was noted in 19.7% of the pediatric cohort.
Conclusions:
- Lisch nodules are highly prevalent in pediatric NF1 patients and are easily recognizable.
- The presence of Lisch nodules, especially with other NF1 stigmata like café au lait patches, serves as a reliable diagnostic criterion for NF1 in children.
- Comprehensive ophthalmologic evaluation is crucial for managing NF1 patients.