SO SÁNH KẾT QUẢ SỬ DỤNG KÍNH NỘI NHÃN ACRYLIC ƯA NƯỚC VÀ ACRYLIC KỊ NƯỚC TRONG PHẪU THUẬT PHACO

Abstract

Objectives: Compare the results of using hydrophilic acrylic and hydrophobic acrylic intraocular lenses in Phaco surgery. Materials and Methods: A randomized controlled clinical trial between two groups was conducted on 140 eyes of 90 patients over 40 years old diagnosed with cataracts and indicated for Phaco cataract surgery from 8/2016 to 8/2017. Patients were randomly divided into two groups. Group A included 70 eyes that had Phaco surgery using hydrophobic Acrylic intraocular lenses and group B included 70 eyes that had Phaco surgery using hydrophilic Acrylic intraocular lenses. Patients were monitored 1 day, 1 week, 1 month, 3 months and 6 months after surgery. Results: At 6 months after surgery, the average logMAR distance visual acuity of group A increased from 1.175 ± 0.452 before surgery to 0.259 ± 0.147; of group B increased from 1.274 ± 0.587 to 0.270 ± 0.115. The difference in preoperative and postoperative logMAR visual acuity between the 2 study groups was not statistically significant with p > 0.05. The incidence of intraocular lens glistenings after surgery was higher in group A (14.3%) than in group B (8.6%) (p>0.05). The uveal reaction of the hydrophobic acrylic group (7.1%) was higher than the hydrophilic acrylic group (4.3%) (p > 0.05). The rate of postoperative anterior capsular fibrosis in both study groups was above 90% (group A 95.7%; group B 91.4%) and mainly at level 1. This difference is statistically significant with p < 0.05. Group B had a higher rate of secondary posterior capsule opacification after surgery (24.3%) than group A (18.6%). The difference is not statistically significant with p>0.05. Conclusions: Phaco surgery using hydrophobic and hydrophilic acrylic intraocular lenses results in good distance vision at all follow-up times. The majority of intraocular lenses were clear at all time of the study. The rate of glistenings in the intraocular lens, the rate of mild uveitis reaction, and the rate of anterior capsule fibrosis of the hydrophobic group are always higher than the hydrophilic group, but the rate of postoperative capsular opacification of the hydrophilic acrylic group is higher than the hydrophobic acrylic group.