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Purpose: To describe five cases of ring melanoma., Material and Methods: There were 5 patients diagnosed with ring melanoma in Department of Ophthalmology and Ocular Oncology in Krakow between 2001-2007. The preliminary diagnosis was based on a clinical examination and ultrasound biomicroscopy and in 3 cases open biopsy was performed., Results: Ring melanoma in 5 patients at the age between 48-73 were recognized. Four patients were using glaucoma medications. All patients were qualified for enucleation, Conclusion: Ring melanoma is rare wariant of uveal melanoma. It often masquerades as unilateral glaucoma, and can be difficult to recognize.

The paper presents the case of the 13 years old boy with the deterioration of vision acuity of the right eye, caused by lens subluxation. The condition was caused by tumour of ciliary body. Additional tests: USG, UBM, CT did not resolve diagnostic doubts. After the biopsy medulloephitelioma was diagnosed and the decision of the eye enucleation was made. Histopathological examination confirmed the diagnosis.