2Uz. Dr., Isparta Devlet Hastanesi, Göz Hastalıkları Bölümü, Isparta - Türkiye
3Prof. Dr., Isparta Kariyer Göz Hastanesi, Göz Hastalıkları Bölümü, Isparta - Türkiye Purpose: To compare the effects of SF6 and C3F8 gas on anterior segment biometrical parameters.
Material and Methods: Sixty patients (60 eyes) with proliferative diabetic retinopathy (PDR) having 23 gauge pars plana vitrectomy (PPV) were enrolled in this prospective study. In Group 1 (30 patients) 20% SF6 gas and in Group 2 (30 patients) 18% C3F8 gas were used as endotamponate. Anterior chamber depth (ACD), central corneal thickness, and lens thickness (LT) values were compared before and 3 months after surgery.
Results: ACD measurements signifi cantly decreased after PPV in both groups (before / 3 months after; Group1: 3.18±0.39 mm /3.05±0.43 mm; Group 2: 3.18±0.33mm /3.11±0.36 mm) (CI 95%, p=0.001). LT was higher in Group 2 (4.32±0.33 mm) than in Group 1 (4.12±0.39 mm) at postoperative third month (CI 95%, p=0.001).
Conclusion: In PDR patients having 23 gauge PPV, in both groups, ACD measurements signifi cantly decreased after PPV. The LT increase was higher in Group 2 than in Group 1, but further studies are needed for more information.
Keywords : Anterior chamber depth, central corneal thickness, gas endotamponate, lens thickness, pars plana vitrectomy