Clinical Features, Histopathological Analysis And Surgical Treatment Of A Free Floating Vitreous Cyst: A Case Report

The authors present a report of a 44-year-old female patient, with complaints of visual disturbances in the left eye. The symptoms were present for at least 5 years and worsenedin the last 2 years, impairing her activities. The patient reported perception of a floating circle, which blurred her vision. There was no previous history of trauma, infectious or inflammatory disease. Clinical evaluation included physical examination, laboratory testing, abdominal ultrasonography, thorax X-ray and head tomography. Ophthalmologic examination consisted of visual acuity, motility tests, biomicroscopy, tonometry and indirect ophthalmoscopy. Complementary investigation was done with α and β scan ocular ultrasonography. The chosen therapeutic approach to excise the cyst was pars plana vitrectomy, successfully performed. Anatomopathologic analysis revealed a pigmented vitreous cyst, of possible congenital origin, described as a cystic choristoma from the primitive hyaloid system. Benign evolution, clinical findings and histopathological analysis corroborated the diagnostic hypothesis of a cystic choristoma of the primitive hyaloid system. Surgery (pars plana vitrectomy) was successful and the patient returned with visual acuity of 20/20 in both eyes, and with no further complaints.695753755Tansley, J.O., Cyst of the vitreous (1899) Trans Am Ophthamol Soc, 8, pp. 507-509Cruciani, F., Santino, G., Salandri, A.G., Monolateral idiopathic cyst of the vitreous (1999) Acta Ophthalmol Scand, 77 (5), pp. 601-603. , ReviewJones, W.L., Free-floating vitreous cyst (1998) Optom Vis Sci, 75 (3), pp. 171-173Orellana, J., O'Malley, R.E., McPherson, A.R., Font, R.L., Pigmented free-floating vitreous cysts in two young adults. Electron microscopic observations (1985) Ophthalmology, 92 (2), pp. 297-302Nork, T.M., Millecchia, L.L., Treatment and histopathology of a congenital vitreous cyst (1998) Ophthalmology, 105 (5), pp. 825-830Awan, K.J., Biomicroscopy and argon laser photocystotomy of free-floating vitreous cysts (1985) Ophthalmology, 92 (12), pp. 1710-1711Ruby, A.J., Jampol, L.M., Nd: YAG treatment of a posterior vitreous cyst (1990) Am J Ophthalmol, 110 (4), pp. 428-429Asiyo-Vogel, M.N., El-Hifnawi, El.-S., Laqua, H., Ultrastructural features of a solitary vitreous cyst (1996) Retina, 16 (3), pp. 250-254Hasegawa, N., Kimura, T., Mizota, A., Sano, N., Adachi-Usami, E., Floating vitreous cyst (1996) Retina, 16 (6), pp. 540-542Steinmetz, R.L., Straatsma, B.R., Rubin, M.L., Posterior vitreous cyst (1990) Am J Ophthalmol, 109 (3), pp. 295-29