Comparation of effectiveness of silicone hydrogel contact lens and hydrogel contact lens in patients after LASEK

• 作者: Jin Zeng Juan Li Wei-Xiong Liao Wen-Juan Xie Xiao-Hong Yang Ying Cui Zhong-Ming Li
• 来源期刊: 国际眼科杂志：英文版
• 学科: 医学
• 关键词: 帮助激光的 subepithelial keratomileusis 硅酮 hydrogel 接触透镜 hydrogel 接触透镜 上皮的愈合
• 年，卷（期）: 2015,（6）
• 页码范围: 1131-1135
• 页数: 0页
• 分类号: R779.6

摘要

AIM: To conduct a comparative study of effectiveness of silicone hydrogel contact lens and hydrogel contact lens, which are used in patients after laser-assisted subepithelial keratomileusis(LASEK).·METHODS: Sixty-three patients(121 eyes) with a spherical equivalent ≤-5.0 D were chosen after undergoing LASEK in 2012 at Guangdong General Hospital. They were randomly divided into 2 groups. The silicone hydrogel group included 32 cases(61 eyes) that wore silicone hydrogel contact lenses for 4-6d after the operation, while the hydrogel group included 31 cases(60 eyes) who wore hydrogel contact lenses for 4-6d after the operation. Patients’ self-reported postoperative symptoms(including pain, photophobia, tears, and foreign body sensation) were evaluated. The healing time of the corneal epithelium, the visual acuity of patients without contact lens after epithelial healing, and the incidence of delayed corneal epithelial shedding were also assessed. The follow-up time was 1mo.·RESULTS: Postoperative symptoms were milder in the silicone hydrogel group than in the hydrogel group.There were significant differences in pain, foreign body sensation, and photophobia between the 2 groups(P <0.05),although there was no significant difference in postoperative tearing(P >0.05). The healing time of the corneal epithelium in the silicone hydrogel lens group was markedly shorter than that in the hydrogel group(4.07±0.25 vs 4.33±0.82 d, t =2.43, P =0.02). Visual acuity without contact lenses after healing of the corneal epithelium was better in the silicone hydrogel group compared with the hydrogel group(χ~2=7.76, P =0.02).There was no significant difference in the occurrence ofdelayed corneal epithelial shedding between the 2 groups(P >0.05).· CONCLUSION: Patients with LASEK using silicon hydrogel contact lenses had less discomfort and shorter corneal epithelial healing time compared with those using hydrogel contact lenses, suggesting that silicon hydrogel contact lenses may be considered to be a better choice of bandage