[Vitrectomy in Terson syndrome. Report of 18 cases].

A vitrectomy was performed in 18 eyes (15 patients) with vitreous hemorrhages due to Terson's syndrome. The average age of the patients was 46.5 +/- 14.4 years. The mean interval between the acute event of an intracranial hemorrhage and the vitrectomy was 6.8 +/- 4.9 months. The vitreous hemorrhage was associated with epiretinal membranes in 3, PVR in 2, and retinal breaks and/or rhegmatogenous retinal detachment in 3 eyes. The vitrectomy had to be combined with membrane peeling in 2, encircling procedures or exoplants in 4, cryotherapy in 5, endolaser in 1, and air/SF6 gas filling in 3 eyes. A missing or incomplete posterior vitreous detachment in 8 eyes was associated with a higher risk of PVR and retinal detachment. Two eyes with this condition needed 3 secondary operations. The mean follow-up duration was 32 (1 to 126) months. Two patients died 4 and 11 months after the operation. The visual acuity improved significantly following vitrectomy in all 18 eyes. The final visual acuity was better than 20/40 in 73% and 20/25 to 20/20 in 56%. The initial postoperative visual acuity decreased later on due to nuclear cataract in 7 of 10 eyes of patients over 45 years of age. A complicated cataract developed in only 1 of 8 eyes of younger patients who maintained a mean visual acuity of 20/25. Vitrectomy for Terson's syndrome is recommended in bilateral cases without spontaneous clearing of the vitreous within 3 months, as well as in cases with PVR and imminent retinal detachment.(ABSTRACT TRUNCATED AT 250 WORDS)