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Free-floating Vitreous Cyst in an Adult Male
Yasin Toklu,Sabri Raza,Hasan Basri Cakmak,Nurullah Cagil 대한안과학회 2013 Korean Journal of Ophthalmology Vol.27 No.6
A 50 year-old male patient was referred to our clinic due to a floating mass in the right eye. The uncorrectedvisual aquity was 10 / 10 in both eyes.The patient did not have any systemic disorder and trauma history. Hisophthalmological examination revealed an unremarkable anterior segment with no signs of inflammation. Indirect opthalmoscopy and posterior segment biomicroscopy performed with 90D lens was unremarkablein the left eye, while in the right eye a single oval cyst was identified floating freely in the vitreous. The cystwas partially masking the underlying retinal vasculature. B-scan ultrasound revealed an echo-free, roundshapedcyst that was free from surrounding vitreous strands or retina localised at the posterior vitreous. Fluorescein angiography (FA) ruled out the presence of intra and overlying vascularisation of the cyst. Indeed,FA showed a clear-edged hypofluorescence due to a pre-retinal masking effect. The indirect hemaglutinintests of the patient for ecinococcus and cysticercosis were negative. Eosinophilia was not detected in thepreripheral blood smear. Based on these findings the patient was diagnosed as primary vitreal cyst. Thepresented case was mild symptomatic so the patient was decided to be followed up without any treatment.