The authors give an account of contemporary problems of child ophthalmological oncology from the paediatrician's aspect. The most serious intraocular tumors are retinoblastomas, in the orbitopalpebral area rhabdomyosarcomas. The authors draw attention to the five main alarming symptoms typical for tumorous processes at these sites: red painful eye, leukokoria, acute visual failure, acute strabism and various rapidly developing protrusions of the bulbus. Subsequently they inform on possible ophthalmological complications of comprehensive oncological treatment.