Wstęp

To compare influence of two different cataract surgery methods on corneal thickness.

Materiał i metody

Prospective, randomized clinical trial with 30 patients undergoing cataract surgery with use of AMO Sovereign Compact-WhiteStar System (15 – standard coaxial, 15 – microincisional). Central corneal thickness was evaluated by means of Visante OCT (Zeiss Meditec, USA) 1 day before, 1 day, 7 days and 4 weeks after surgery. Equivalent phaco time (EPT) and percentage of phaco power (AVG), was registered after each operation. Surgeons used phaco-chop phacoemulsification technique for nuclear removal.

Wyniki

Mean EPT and mean AVG were comparable in both groups. Mean EPT was 8.06 ± 4.47 (s ± SD), in standard coaxial-phaco group and 8.94 ± 5.75 (s ± SD) in MICS group. Mean AVG was 13.87 ± 5.12% in standard coaxial-phaco group and 12.96 ± 5.73% in MICS group. Mean central corneal thickness increase 1 day, 7 days, 4 weeks after cataract surgery, was respectively: in standard coaxial-phaco group: 81.23 ± 53.44 (μm ± SD), 64.50 ± 50.75 (μm ± SD), 4.05 ± 15.32 (μm ± SD); in MICS group: 69.09 ± 48.69 (μm ± SD), 7.75 ± 8.24 (μm ± SD), 2.51 ± 5.32 (μm ± SD).

Wnioski

Microincision cataract surgery reduces risk of corneal edema when comparing to standard coaxial phacoemulsification. Visante OCT is a useful method of corneal thickness assessment after cataract surgery.