Saeed Karimi1,2, Morteza Entezari1,2,3, Homayoun Nikkhah1,2, Hamed Esfandiari1, Tahereh Darvishpoor1,4, Mehdi Tavakoli1,4, Sare Safi1. 1. Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran. 2. Department of Ophthalmology, Torfeh Eye Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran. 3. Ophthalmic Epidemiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran. 4. Department of Ophthalmology, Labbafinejad Medical Center<unterline>,</unterline> Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Abstract
PURPOSE: To evaluate the effects of intravitreal silicone oil (SO) on subfoveal choroidal thickness (SFCT). METHODS: A total of 60 patients with unilateral pseudophakic macula-off rhegmatogenous retinal detachment were treated with a three-port pars plana vitrectomy and a 5,700-cSt SO endo-tamponade and subsequent SO removal. SFCT was measured before and 3 months after SO removal. The main outcome measure was the difference between the SFCT of operated eyes and the fellow eyes. RESULTS: Before SO removal, the mean SFCT differences in group 1 (3-6 months' duration of SO), group 2 (6-9 months' duration of SO), and group 3 (9-18 months' duration of SO) were -14.8, -25.5, and -62.1 µm, respectively (p = 0.002, r = 0.398). Three months after SO removal, the mean SFCT differences in group 1, group 2, and group 3 were -13.4, -23.3, and -59.0 µm, respectively (p = 0.002, r = 0.393). CONCLUSION: SFCT decreased significantly in eyes with long-term (≥6 months) intravitreal SO tamponade. Choroidal thinning did not improve after SO removal.
PURPOSE: To evaluate the effects of intravitreal silicone oil (SO) on subfoveal choroidal thickness (SFCT). METHODS: A total of 60 patients with unilateral pseudophakic macula-off rhegmatogenous retinal detachment were treated with a three-port pars plana vitrectomy and a 5,700-cSt SO endo-tamponade and subsequent SO removal. SFCT was measured before and 3 months after SO removal. The main outcome measure was the difference between the SFCT of operated eyes and the fellow eyes. RESULTS: Before SO removal, the mean SFCT differences in group 1 (3-6 months' duration of SO), group 2 (6-9 months' duration of SO), and group 3 (9-18 months' duration of SO) were -14.8, -25.5, and -62.1 µm, respectively (p = 0.002, r = 0.398). Three months after SO removal, the mean SFCT differences in group 1, group 2, and group 3 were -13.4, -23.3, and -59.0 µm, respectively (p = 0.002, r = 0.393). CONCLUSION: SFCT decreased significantly in eyes with long-term (≥6 months) intravitreal SO tamponade. Choroidal thinning did not improve after SO removal.