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[Ocular involvement in nail-patella syndrome (#161200)]
S J Fröhlich1, P Kalpadakis, G Rudolph
1Augenklinik der Ludwig-Maximilians-Universität, München, Kooperationsgruppe Ophthalmogenetik. sfroehli@ak-i.med.uni-muenchen.de
Summary
Nail-patella syndrome (NPS) patients require regular eye exams due to potential glaucoma. LMX1B gene mutations may cause corneal changes leading to refractive errors in NPS.
Area of Science:
- Ophthalmology
- Genetics
- Systemic Diseases
Background:
- Nail-patella syndrome (NPS) is an autosomal dominant disorder caused by LMX1B gene mutations.
- NPS is characterized by nail dysplasia, patella hypoplasia, renal disease, and open-angle glaucoma.
Observation:
- A mother and son with genetically confirmed NPS underwent ophthalmological examinations.
- Examinations included corneal topography, gonioscopy, intraocular pressure, and axial length measurements.
Findings:
- Both patients exhibited NPS-specific symptoms.
- The son showed no signs of glaucoma but had significant astigmatism and hyperopia.
- The mother's ocular status was not detailed, but the co-segregation of glaucoma was noted.
Implications:
- Regular ophthalmological screening, including intraocular pressure measurement, is crucial for NPS patients.
- LMX1B gene mutations may induce anterior segment structural changes, potentially causing refractive abnormalities.
- Corneal structural changes due to NPS could lead to conditions like amblyopia and hyperopia.